Monday, May 2, 2016

This Date in Weather History for May 2,2016 from weatherforyou.com

Weather History
For Monday,May 2,2016
 
 
 
1899 - A storm buried Havre, MT, under 24.8 inches of snow, an all-time record for that location. The water equivalent of 2.48 inches was a record 24 hour total for the month of May. (The Weather Channel)
1920 - A swarm of tornadoes in Rogers, Mayes and Cherokee Counties in Oklahoma killed 64 persons. (David Ludlum)
1929 - Virginia's worst tornado disaster occurred. Six tornadoes, two of which were west of the Blue Mountains, killed 22 people. Twelve children and a teacher were killed at Rye Cove, in Scott County. Four schools were destroyed by the storms. (The Weather Channel)
1983 - Severe thunderstorms spawned twenty tornadoes across Michigan, Ohio, Pennsylvania and New York State. The tornadoes caused five deaths. (The Weather Channel)
1987 - Thunderstorms in the Lower Mississippi Valley produced golf ball size hail in northern Louisiana, and wind gusts to 77 mph at Lake Providence LA. Thunderstorms in Arkansas produced 4.20 inches of rain at Arkadelphia and 4.00 inches at Bismarck. (Storm Data) (The National Weather Summary)
1988 - A powerful storm produced snow and high winds in the Central Rockies and the Central High Plains Region. Snowfall totals in Colorado ranged up to 12 inches at Strasburg, and winds in southeastern Colorado gusted to 87 mph at Lamar. Snow and high winds created blizzard conditions in eastern Colorado and southeastern Wyoming. (The National Weather Summary) (Storm Data)
1989 - Thunderstorms developing to the north of a warm front produced severe weather in Oklahoma and Texas. There were 93 reports of severe weather. Thunderstorm winds gusted to 80 mph at Beattie, and baseball size hail was reported at Ranger and Breckenridge. Juneau AK reported a record high temperature of 72 degrees while Honolulu equalled their record low for the month of May with a reading of 60 degrees. (The National Weather Summary) (Storm Data)
1990 - Fourteen cities in Florida, Georgia and South Carolina reported record high temperatures for the date as readings soared into the 90s. Tampa FL reported a record high of 97 degrees, and Fort Stewart GA was the hot spot in the nation with a reading of 100 degrees.
1990 - Thunderstorms produced severe weather from northeastern Texas to western Arkansas during the evening and early nighttime hours. Thunderstorms spawned a tornado which injured thirteen persons at Paris TX, and produced baseball size hail at Rio Vista TX. Thunderstorm rains of four to seven inches caused flash flooding in west central Arkansas, southern and eastern Oklahoma, and northern Texas. (The National Weather Summary) (Storm Data)

Sunday, May 1, 2016

National Temperature and Rainfall Extremes for May 1,2016 from accuweather.com

As of 11PM,EDT/8PM,PDT




Daily U.S. Extremes

past 24 hours

  Extreme Location
High 96° McAllen, TX
Low 14° Leadville, CO
Precip 6.34" Sulphur, LA

New York City metro-area forecast for May 1-June 30,2016 from accuweather.com

Here's the New York City metro-area forecast for the period of the next 2 months; all of May and all of June (May 1-June 30),2016 from accuweather.com










Tonight,May 1-2: Remaining cloudy,rainy,raw,dank and dreary with considerable cloudiness and areas of drizzle and patchy fog and a low temperature holding at 45-50 degrees,overnight.As of 12:30AM,EDT,May 2,it's only 42 degrees with a sprinkle and 95% humidity,in White Plains,NY,and it's 46 degrees with light fog and 92% humidity,in New York City.

Tomorrow,May 2: Remaining cloudy and rainy,but turning much warmer than yesterday,as it turns seasonably mild for mid-spring with considerable cloudiness and a chance for a couple of morning rain showers and a high temperature of 60-65 degrees.

Tomorrow night,May 2-3: Remaining cloudy and rainy,but not as cool as last night with considerable cloudiness and times of late-night rain possible and a low temperature dropping to 50-55 degrees, overnight.

Tuesday,May 3: Remaining mostly cloudy,rainy,soggy,raw,and rather cool for mid-spring and the beginning of May with spotty rain showers possible and a high temperature only in the upper 50's to lower 60's.Remaining cloudy,rainy,and seasonably mild for mid-spring with a chance for a rain shower and a low temperature dropping to 50-55 degrees,once again,overnight.

Wednesday,May 4: Remaining mostly cloudy and a bit cool for mid-spring and very early May with a high temperature of just 60-65 degrees.Remaining mostly cloudy,rainy,raw and soggy with occasional rain and a low temperature dropping to around 50 degrees,overnight.

Thursday,May 5: More of the same;remaining cloudy,rainy,and seasonably mild for mid-spring with occasional rain and a high temperature in the middle 60's.Remaining mostly cloudy and seasonably mild with a low temperature dropping to the upper 40's to lower 50's,overnight.

Friday,May 6: Remaining cloudy and rainy,but turning warmer than recent days with a stray rain shower and a high temperature of 65-70 degrees.Remaining cloudy,rainy,and mild with more rain possible with a chance for a passing rain shower and a low temperature dropping to the upper 40's to lower 50's,once again,overnight.

Saturday,May 7: Remaining mostly cloudy and rainy,but turning even warmer,with a chance for a shower continuing and a high temperature of 70-75 degrees.Finally turning partly cloudy and warmer than recent nights with a low temperature dropping to the middle 50's,overnight.

Sunday,May 8: Mother's Day 2016 will be remaining rainy,warm,and humid with partial sunshine and a chance for a couple of more rain showers perpetually continuing and a high temperature in the lower and middle 70's,the very light,sultry,northwesterly winds and high humidity levels making it feel even warmer,like it's in the upper 70's to lower 80's,at times.Becoming partly cloudy,but remaining mild with a low temperature of 50-55 degrees,overnight.

Monday,May 9: Turning very warm with some sun finally and a high temperature of 75-80 degrees.Finally turning clear,but remaining rather mild for early May and mid-spring with a low temperature dropping to the middle 50's,overnight.

Tuesday,May 10: Remaining very warm with thickening cloudiness and a high temperature of 75-80 degrees,once again.Turning mostly cloudy and rainy,once again,with times of rain possible and a low temperature dropping to the middle 50's,once again,overnight.

Wednesday,May 11: Not as warm with intervals of clouds and sunshine and a high temperature in the upper 60's to lower 70's.Turning cloudy,rainy,and much colder than recent nights with a chance for rain and a low temperature dropping to the middle and upper 40's,overnight.

Thursday,May 12: Remaining seasonably warm for early-to-mid May and mid-to-late spring with variable cloudiness and a chance for a couple of rain showers and a high temperature of 65-70 degrees.Remaining cloudy,rainy,raw,dank,dreary,and seasonably mild for mid-to-late spring with considerable cloudiness and a chance for a couple more rain showers and a low temperature dropping to 45-50 degrees,overnight.

Friday,May 13: Remaining cloudy,but turning warmer than recent days with a high temperature in the lower and middle 70's.Turning cloudy,rainy,stormy,soggy,and warmer than recent nights with a chance for more rain and flooding followed by thunderstorms tapering to rain showers and a low temperature dropping to the middle 50's,overnight.

Saturday,May 14: Turning partly sunny,but not as warm with a high temperature in the upper 60's to lower 70's.Turning cloudy and rainy,with more rain and flooding possible with periods of rain and a low temperature dropping to the upper 40's to lower 50's,overnight.

Sunday,May 15: Finally turning drier than recent days with times of clouds and sun and a high temperature of 70-75 degrees.Remaining partly cloudy and seasonably mild for mid-May and late spring with a low temperature dropping to 50-55 degrees,overnight.

Monday,May 16: Turning cloudy and rainy,with more rain and flooding possible and a high temperature in the middle 70's.Remaining cloudy,rainy,warm and muggy,with more rain and flooding possible and a low temperature dropping to 55-60 degrees,overnight.

Tuesday,May 17: Remaining warm with clouds finally giving way to some rare May sunshine and a high temperature in the middle and upper 70's.Finally turning clear and not as warm with a low temperature dropping to around 50 degrees,overnight.

Wednesday,May 18: Not as warm with partial sunshine and a high temperature of just 65-70 degrees.Turning clear,once again,with a low temperature dropping to 50-55 degrees,overnight.

Thursday,May 19: Turning warmer with ample sunshine FOR A CHANGE,and a high temperature of 70-75 degrees.Remaining mainly clear,but turning milder/warmer than recent nights with a low temperature dropping to the middle 50's,overnight.

Friday,May 20: Turning warmer than recent days with thickening cloudiness and a high temperature in the middle and upper 70's.Remaining seasonably mild with considerable cloudiness and a low temperature dropping to the middle and upper 50's,overnight.

Saturday,May 21: Turning cloudy and rainy,once again,with considerable cloudiness and a chance for even more rain showers and flooding possible and a high temperature of 75-80 degrees.Remaining cloudy,rainy,stormy,warm,and muggy with considerable cloudiness and a chance for a little evening rain followed by areas of late-night drizzle and flooding possible,and a low temperature dropping to 55-60 degrees,overnight.

Sunday,May 22: Remaining cloudy,very warm and humid with considerable cloudiness and a high temperature of 75-80 degrees,once again.Remaining cloudy and seasonably mild to warm with considerable cloudiness and a low temperature dropping to the middle 50's,overnight.

Monday,May 23: Remaining cloudy,rainy,soggy,and warm,but not as warm as recent days with more rain and flooding possible and a high temperature in the upper 60's to lower 70's.Remaining cloudy,rainy,warm,and muggy,with periods of rain and flooding possible and a low temperature dropping to the middle 50's,once again,overnight.

Tuesday,May 24: Remaining cloudy and seasonably warm,but dry,with a high temperature of 70-75 degrees.Remaining mostly cloudy,but not as mild as recent nights with a low temperature dropping to the upper 40's to lower 50's,overnight.

Wednesday,May 25: Remaining cloudy,but turning cooler/colder than recent days,as it turns rather cool for very late May and late spring with a high temperature only in the middle and upper 60's.Remaining cloudy,rainy,soggy,dank and dreary,with more showers and flooding possible and a low temperature dropping to the upper 40's to lower 50's,once again,overnight.

Thursday,May 26: Remaining cloudy,rainy,raw,dank,dreary and a bit cool for very late May and late spring with morning rain tapering to a couple of rain showers and a chance for flooding continuing and a high temperature of just 65-70 degrees.Remaining cloudy and rainy,but not as cool as recent nights with periods of rain and flooding possible and a low temperature dropping to the middle 50's,overnight.

Friday,May 27: Remaining mostly cloudy and a bit cool for the end of May and very late spring with a high temperature of around 70 degrees.Becoming clear and a bit cool for the end of May with a low temperature dropping to the upper 40's to lower 50's,overnight.

Saturday,May 28: Remaining rather cool for the end of May,despite ample sunshine FOR A CHANGE,with a high temperature of just 65-70 degrees.Remaining partly cloudy and rather cool for very late spring with a low temperature dropping to around 50 degrees,overnight.

Sunday,May 29: Turning warmer,with more ample sunshine FOR A CHANGE,with a high temperature in the lower and middle 70's.Becoming clear,but remaining rather chilly for the end of May with a low temperature dropping to around 50 degrees,once again,overnight.

Monday,May 30: Memorial Day 2016 will be remaining mostly sunny FOR A CHANGE with a high temperature in the lower and middle 70's,once again.Remaining mainly clear,but not as cool with a low temperature dropping to the lower and middle 50's,overnight.

Tuesday,May 31: May of 2016,one of the rainiest,wettest,coolest Mays on record,ends turning warmer than recent days with a mix of sun and some clouds and a chance for a scattered shower or thunderstorm possible and a high temperature of 75-80 degrees.Remaining a bit cool for very late spring with patchy clouds and a chance for a scattered shower or thunderstorm possible and a low temperature dropping to 50-55 degrees,overnight.

Wednesday,June 1: June of 2016 begins turning mostly sunny,but remaining very warm for very late spring with a high temperature in the upper 70's to lower 80's.Becoming partly cloudy and milder/warmer than recent nights with a low temperature dropping to 55-60 degrees,overnight.

Thursday,June 2: Not as warm with a mix of sunshine and some clouds and a high temperature in the middle 70's.Remaining clear to partly cloudy and warm with a low temperature dropping to the upper 50's to lower 60's,overnight.

Friday,June 3: Turning very warm and humid with partly sunny skies and a chance for a scattered shower or thunderstorm possible and a high temperature in the upper 70's to lower 80's.Remaining partly cloudy,warm and muggy with a scattered shower or thunderstorm possible and a low temperature dropping to the upper 50's to lower 60's,once again,overnight.

Saturday,June 4: Remaining very warm and humid with variable cloudiness and a chance for a couple of showers and a thunderstorm and a high temperature of 80-85 degrees,the light,sultry,southwesterly winds,and high humidity levels making it feel very warm to hot,like it's in the upper 80's to lower 90's,at times.Remaining partly cloudy,rainy,stormy,warm and muggy with more scattered showers and thunderstorms and flooding possible and a low temperature dropping to around 60 degrees, overnight.

Sunday,June 5: Remaining very warm and humid for very early June and the end of spring with times of clouds and sun and a chance for even more scattered showers and thunderstorms leading to flooding possible and a high temperature in the upper 70's to lower 80's,the light,sultry,southwesterly winds and high humidity levels making it feel even warmer,like it's in the middle 80's,at times.Remaining mostly cloudy,rainy,stormy,warm and muggy with more scattered showers and thunderstorms and flooding possible and a low temperature dropping to the upper 50's to lower 60's, overnight.

Monday,June 6: Remaining mostly cloudy and very warm with a high temperature of 80-85 degrees.Remaining mostly cloudy,rainy,stormy,warm and humid with a chance for a shower or thunderstorm continuing and a low temperature dropping to the upper 50's to lower 60's,once again, overnight.

Tuesday,June 7:  Remaining very warm,but turning more humid with a mix of clouds and sunshine and a chance for more ever-present scattered showers and thunderstorms possible and a high temperature of 80-85 degrees,once again,the very light,sultry,northeasterly winds and high humidity levels making it feel quite warm to hot,like it's around 90 degrees,at times.Remaining partly cloudy, warm and humid with a chance for a rain shower and a low temperature dropping,for the third straight night,down to the upper 50's to lower 60's,overnight.

Wednesday,June 8: Not as warm,but remaining warm and humid with more scattered showers and thunderstorms possible and a high temperature of 75-80 degrees,the light,sultry,southeasterly winds and high humidity levels making it feel even warmer,like it's in the lower and middle 80's,at times.Remaining cloudy and rainy,but turning cooler than recent nights with more scattered showers and thunderstorms possible and a low temperature dropping to the lower and middle 50's,overnight.

Thursday,June 9: Remaining seasonably warm and humid with variable cloudiness and a stray thunderstorm possible and a high temperature in the upper 70's to lower 80's.Finally turning mainly clear and seasonably mild to warm for early June and the end of spring,with a low temperature dropping to 55-60 degrees,overnight.

Friday,June 10: Finally turning mostly sunny and seasonably warm with a high temperature in the upper 70's to lower 80's,the very light,southwesterly winds and moderate humidity levels making it feel quite warm,like it's 85-90 degrees,at times.Remaining warm with increasing cloudiness and a low temperature dropping to around 60 degrees,overnight.

Saturday,June 11: Remaining very warm and humid with intervals of clouds and sunshine and a slight chance for a rain shower and a high temperature of 80-85 degrees.Remaining partly cloudy and warm with a low temperature dropping to the upper 50's to lower 60's,overnight.

Sunday,June 12: Remaining very warm and humid with a mix of sunshine and some clouds and a high temperature of 80-85 degrees,once again,the light,sultry,westerly winds and high humidity levels making it feel even warmer,like it's around 90 degrees,at times.Remaining partly cloudy,but not as warm as recent nights,with a low temperature dropping to the middle 50's,overnight.

Monday,June 13: Remaining very warm and humid with times of clouds and sun and a chance for a couple of showers and a thunderstorm and a high temperature,for the third straight day,of 80-85 degrees,the light,sultry,westerly winds,which could gust up to 25-mph,especially in any thunderstorms,and high humidity levels making it feel even warmer,like it's 85-90 degrees,at times.Remaining partly cloudy and seasonably warm for early-to-mid June with a low temperature dropping to around 60 degrees, overnight.

Tuesday,June 14: Becoming partly sunny with a high temperature in the upper 70's to lower 80's,the very light,sultry,westerly winds and high humidity levels making it feel much warmer,like it's 85-90 degrees,at times,once again.Turning cloudy,rainy,warm and muggy with periods of rain and a low temperature dropping to 60-65 degrees,overnight.

Wednesday,June 15: Remaining mostly cloudy,very warm and humid with a chance for a couple of showers and a thunderstorm and a high temperature of 80-85 degrees.Remaining mostly cloudy,rainy and stormy,but not as warm with more scattered showers and thunderstorms and flooding possible and a low temperature dropping to the middle and upper 50's,overnight.

Thursday,June 16: Remaining mostly cloudy,very warm and muggy with more scattered showers and thunderstorms and flooding possible and a high temperature in the lower and middle 80's.Remaining a bit cool for mid-June and the end of spring,with clearing and a low temperature dropping to the middle 50's,once again,overnight.

Friday,June 17: Turning sunny,cooler,and less humid than recent days with a high temperature of 75-80 degrees.Becoming clear,but remaining a bit cool for mid-to-late June with a low temperature dropping to 55-60 degrees,overnight.

Saturday,June 18: Remaining seasonably warm for mid-to-late June and the end of spring with ample sunshine and a high temperature of around 80 degrees,the very light,sultry,southeasterly winds and moderate humidity levels making it feel even warmer,like it's in the middle 80's,at times.Turning cloudy and rainy,once again,but also turning a bit warmer than recent nights with a chance for a little rain and a low temperature dropping to the upper 50's to lower 60's,overnight.

Sunday,June 19: Father's Day 2016 will be turning cloudy,rainy,raw,and a bit cool for mid-to-late June and the last days of spring with more rain and flooding possible and a high temperature of just 75-80 degrees.Remaining cloudy,rainy,soggy,dank and dreary with more rain and flooding possible and a low temperature dropping to 60-65 degrees,overnight.

Monday,June 20: The last day of the 2016 spring season;one of the wettest and coldest on record,ends remaining warm and muggy with intervals of clouds and sunshine and a high temperature in the upper 70's to lower 80's,the very light,sultry,southwesterly winds,and high humidity levels making it feel even warmer,like it's 85-90 degrees,at times.Remaining partly cloudy,warm,and muggy with a low temperature dropping to the lower and middle 60's,overnight.

Tuesday,June 21: The first day of the 2016 summer season (the 2016 Summer Solstice),will be remaining very warm and humid with intervals of clouds and sunshine and a high temperature in the lower and middle 80's.Remaining partly cloudy,warm,and muggy with a scattered shower or thunderstorm possible and a low temperature dropping to the lower and middle 60's,once again, overnight.

Wednesday,June 22: Remaining very warm,but turning even more humid with intervals of clouds and sunshine and a chance for a thunderstorm and a high temperature in the middle 80's,once again,the light,sultry,southwesterly winds and high humidity levels making it feel much warmer,making it feel very hot,like it's 90-95 degrees,at times.Becoming partly cloudy and cooler/colder than recent nights with a low temperature plunging to the middle and upper 50's,overnight.

Thursday,June 23: Remaining seasonably very warm for very late June and the beginning of summer, with times of clouds and sun and a high temperature of 80-85 degrees.Becoming mainly clear,but remaining rather cool to chilly for the beginning of summer,with a low temperature dropping to the middle and upper 50's,once again,overnight.

Friday,June 24: Becoming mostly sunny and cooler than recent days with a high temperature in the upper 70's to lower 80's.Becoming clear and milder than recent nights with a low temperature dropping to the upper 50's to lower 60's,overnight.

Saturday,June 25: Remaining mostly sunny and seasonably very warm for very late June and the beginning of summer with a high temperature in the upper 70's to lower 80's,once again.Turning cloudy,rainy,and warmer than recent nights with a touch of rain and a low temperature dropping to the middle and upper 60's,overnight.

Sunday,June 26: Turning warmer and more humid,as it turns quite warm to hot for the beginning of summer,with a mix of sun and some clouds and a chance for widely separated thunderstorms and a high temperature of 85-90 degrees,the light,sultry,southwesterly winds,which could gust up to 30-mph in thunderstorms,making it feel even hotter,like it's 90-95 degrees,at times.Remaining partly cloudy,warm,and muggy with a low temperature dropping to the middle 60's,once again,overnight.

Monday,June 27: Remaining quite warm and muggy for the end of June and the beginning of summer,with a mix of clouds and sunshine and a chance for a shower or thunderstorm possible and a high temperature in the middle 80's,the sultry,westerly winds,which could gust past 30-mph in any thunderstorms,and high humidity levels making it feel even hotter,like it's around 90 degrees,at times.Turning partly cloudy and cooler than recent nights with a low temperature dropping to around 60 degrees,overnight.

Tuesday,June 28: Becoming mostly sunny a bit cooler and less humid than recent days with a high temperature of 80-85 degrees.Becoming mainly clear,but remaining seasonably warm for the end of June with a low temperature dropping to the upper 50's to lower 60's,overnight.

Wednesday,June 29: Remaining seasonably very warm,but turning more humid with partial sunshine and a chance for a scattered shower or thunderstorm possible and a high temperature of 80-85 degrees,once again,the very light,sultry,southerly winds and high humidity levels making it feel much warmer,making it feel very hot,like it's 90-95 degrees,at times.Remaining partly cloudy,rainy,stormy, raw and unseasonably cool for the end of June and the beginning of summer with a scattered shower or thunderstorm possible and a near record low temperature dropping to 55-60 degrees,overnight.

Thursday,June 30: June of 2016,one of the stormiest,wettest Junes on record,ends remaining seasonably warm and humid with intervals of clouds and sunshine and a chance for a scattered shower or thunderstorm possible and a high temperature in the upper 70's to lower 80's,the very light,sultry,southeasterly winds and high humidity levels making it feel even warmer,like it's in the middle and upper 80's,at times.Becoming mainly clear and not as cool with a low temperature dropping to the upper 50's to lower and middle 60's,overnight.

Rounds of rain to frequent northeastern US first week of May

By , Senior Meteorologist
May 1,2016; 9:31PM,EDT
 
 
Dry days will be hard to come by in the northeastern United States for the first week of May as storm systems cause rain to frequent the region.
The bouts of wet weather through the first half of the week will come at the hands of storm systems tracking in from the southwest. Another system dropping down from Canada will keep the region unsettled later in the week.

While rain will dominate the week, widespread downpours are not expected and the risk of flooding will remain low.
The main exception will be in West Virginia, eastern Kentucky and southwestern Virginia where the ground is more saturated and more susceptible to the downpours into Monday night causing flash flooding.
The rain elsewhere will instead cause more of disruption to some sporting events and other outdoor plans. Baseball fans headed to the upcoming games in New York City, Pittsburgh and Baltimore may encounter delays.
Residents will have to take advantages of the occasional breaks in the rain to squeeze in these activities, such as mowing.
RELATED:
Goodbye Joaquin, Patricia and Erika: World Meteorological Organization retires 3 names from 2015 hurricane season
California drought: Stormy El Nino winter has some calling for end to strict water usage restrictions
Forecast temperature maps

One break in the rain on Sunday afternoon was welcome by crews in Washington, D.C., cleaning up the train that derailed earlier in the morning.
A total of 14 cars of the CSX freight train derailed around 6:40 a.m. EDT, the Associated Press (AP) reported. There were no injuries and no evacuations were ordered.
Preliminary weather observations from Reagan National Airport at 6:38 a.m. EDT on Sunday indicated that winds were from the southeast at 7 mph with light rain reducing visibility to 9 miles. Six-hour rainfall ending at 8 a.m. was 0.18 of an inch.
One of the derailed cars was leaking sodium hydroxide, D.C. Fire and EMS confirmed. The highly corrosive chemical is used to produce various household produces, such as soaps and detergents, CSX spokeswoman Kristin Seay told the AP.
Crews will catch another period of dry weather during the morning and early afternoon hours of Monday before rain and thunderstorms return late in the afternoon and at night.
Amid the wet weather in the Northeast this week, travelers both on the ground and in the air may encounter minor delays.
Any heavier downpours will reduce visibility and heighten the risk of vehicles hydroplaning when traveling at highway speeds.
One band of steadier rain that may produce such downpours will track from western New York State to northern New England into Monday. Another batch will target the Appalachians around West Virginia and the mid-Atlantic later Monday into Tuesday.
Locally heavy thunderstorms can also occur early this week, mainly south of the Mason-Dixon Line.
"The [late-week] system will slowly meander through the region and while it will not be raining all of the time, sunshine will be limited and showers are a threat," AccuWeather Meteorologist Ed Vallee said.
In addition to potentially disrupting more outdoor plans, the showers could put a damper on Cinco de Mayo festivities on Thursday.
The rain will not be entirely bad news for the Northeast. Rainfall deficits will continue to shrink, easing brush fire concerns.
RELATED:
Northeastern US interactive radar
AccuWeather MinuteCast® for your location
Forecast temperature maps

Many areas from Virginia to southeastern New York and southwestern New England have received only about 50 percent or less of their average rainfall since March 1.
Pollen levels will be lowered on persistently rainy days.
The bouts of rain, along with fresh cool air being brought down by the late-week system, will hold temperatures near to slightly below normal for most of the week.
The air is not expected to get cold enough for frost. However, it is not out of the question for wet snow to fall in the higher terrain of the central Appalachians with the late-week system.
"By the end of the week and into the next weekend, an approaching front will push the [late-week] system east, ushering in warmer air by the following week," Vallee said.

May to start on warm, muggy note in southeastern US

By , Senior Meteorologist
May 1,2016; 9:25PM,EDT
 
 
Residents of the southeastern United States may feel like the calendar has flipped ahead to Memorial Day weekend with warm and muggy weather in place for the start of May.
After the passage of a cold front brought cooling to North Carolina to end April, warm and humid air will surge back across all of the Southeast to kick off May.
"A predominantly southerly flow [of air] will set up across the Southeast into Monday," AccuWeather Meteorologist Maggie Samuhel said.
"Moisture will be picked up from the warming Gulf of Mexico waters and carried into the region, bringing high dew points."

Highs in the 80s will dominate the Southeast from Florida to North Carolina on Monday. Some communities, the most numerous of which will be in central Florida, will even crack the 90-degree-Fahrenheit mark.
Highs in early May typically range from the middle 80s in central Florida to middle 70s in North Carolina.
A wind blowing in off the ocean will keep the beaches cooler than neighboring inland locations.
While actual temperatures may come up short, AccuWeather RealFeel® Temperatures in many communities will approach or top 90 during the first day or two of May due to the higher humidity. RealFeels will even rise into the upper 90s from southern South Carolina to the interior of Florida.

This includes in Jacksonville and Tallahassee, Florida; Augusta and Savannah, Georgia; Columbia, South Carolina; and Charlotte and Raleigh, North Carolina.
While such steamy air is fairly common in summer, it may still put a strain on residents who have not yet become accustomed to it following the cooler winter and early spring months.
Those planning to engage in strenuous outdoor plans are urged to drink plenty of water and take frequent breaks.
RELATED:
Southeast US interactive radar
Forecast temperature maps
Rounds of flooding rain, storms eye Houston to New Orleans through early week

However, the warm and muggy conditions to start May will not be accompanied by a full day of blazing sunshine throughout the Southeast. The stage will be set for showers and thunderstorms to rumble, especially in the afternoon.
Widespread severe weather is not anticipated, but a locally drenching or gusty thunderstorm cannot be ruled out. Regardless of the severity of the thunderstorms, anyone outdoors should seek shelter as soon as thunder is heard. The danger of being struck by lightning is then present.
There have been five lightning fatalities in the United States so far this year, according to National Oceanic and Atmospheric Administration Lightning Safety Specialist John Jensenius.
"The five fatalities this year are the most this year in the season since 2001 (when there were seven fatalities by April 27)," Jensenius said.
Those planning to head to the beach to beat the warmth should stay alert of impending thunderstorms with AccuWeather MinuteCast®. Swimmers are also reminded to use extra caution where lifeguards have not resumed their duties for the summer season.
While May is starting out warm and muggy, changes are on the way for residents who are not ready for the steamy summer months to set in.
A pair of storm systems, accompanied by more showers and thunderstorms, will gradually trim dew points and lower temperatures back to near or slightly below normal in a northwest-to-southeast fashion from Tuesday to Thursday.
Less humid air will even sweep down to Miami and the rest of South Florida.

Rounds of flooding rain, storms eye Houston to New Orleans through early week

By Renee Duff, AccuWeather.com Meteorologist
May 1,2016; 9:23PM,EDT
 
 
A stormy pattern will persist across the western Gulf Coast, threatening to trigger more flooding from Texas to Mississippi through at least Monday.
"The deluge of heavy rain will continue across the Gulf Coast as a slow-moving front drags eastward," according to AccuWeather Meteorologist Brett Rossio.
Locations from eastern Texas to Louisiana and Mississippi will contend with additional rounds of heavy rain falling on already saturated soil, which will enhance the risk for flash flooding.
"A moist, southerly flow from the Gulf of Mexico will converge with this front and ignite several rounds of heavy showers and thunderstorms along the Gulf Coast states into Monday night," Rossio added.

Cities that are at risk for flash flooding early this week include Beaumont, Houston and Galveston, Texas; Baton Rouge, Lafayette, Lake Charles and New Orleans, Louisiana; and Biloxi and Jackson, Mississippi. Residents of neighboring communities should also not let their guard down.
Rainfall amounts may exceed half a foot in some locations.
Torrential rain triggered flooding across southern Louisiana on Sunday, submerging streets and closing some highways. There are radar estimates of rainfall amounts in excess of 6 inches from Lake Charles to near Baton Rouge.
Thunderstorms on Sunday also forced the Lake Pontchartrain Causeway Bridge to be closed for a time.
This is not a safety first approach. Never a good idea to drive thru water. Hopefully everyone is okay.

The drenching rain and storms will train over areas that were hit hard by deadly flooding a few weeks ago.
Houston and New Orleans both received more than double their normal rainfall for the month of April.
Even a couple inches of rain in as many hours could cause flash flooding due to the saturated ground and high water levels in rivers, streams and bayous.
RELATED:
May to start on warm, muggy note in southeastern US
Goodbye Joaquin, Patricia and Erika: World Meteorological Organization retires 3 names from 2015 hurricane season
Weekly wrap-up: Severe storms rattle central US; UN seeks billions to offset El Nino's devastating blow to 60 million worldwide

Numerous rivers in southeastern Texas and southwestern Louisiana remain at or above flood stage. Any additional rainfall will cause water to quickly spill onto neighboring roads and lands.
"The flooding situation will only be exacerbated," Rossio warned.
Motorists are urged to turn around and find an alternate route if a flooded roadway is encountered. The water may be deeper than it appears and the roadway underneath could be compromised.

As is typical in springtime, any storms that erupt could quickly turn severe, adding an additional hazard to the area. Damaging winds and large hail will be the primary threats, but an isolated tornado or two could spin up.
The rain has suspended play enough at the PGA Zurich Classic in New Orleans that golfers will now be playing on Monday. Thunderstorms caused delays at the golf tournament on Thursday and Saturday, followed by another suspension on Sunday.
So you're telling us it rained here...

A much-needed dry spell will return to the region by the middle of the week.
"High pressure will finally push the frontal boundary out of eastern Texas by Monday night," Rossio stated. "Drier air will push into New Orleans by Tuesday night."

The drier conditions and increasing amounts of sunshine will allow rivers and streams to gradually recede and the ground to begin to dry out.
The area of high pressure will keep rain away from the region into at least the early part of Mother's Day weekend.

Northwestern US: Summer warmth starts May after April shatters records

May 1,2016; 9:22PM,EDT
 
 
May is picking up where April left off with record-challenging warmth surging back into the northwestern United States.
The start of May will feel more like summer in the Northwest as temperatures soar back into the 80s in the valleys, where highs generally in the 60s are more common for early May.
"A strong upper-level high pressure building into the West will bring a pretty significant change to the region with temperatures rising to near or even above record levels in many places," AccuWeather Meteorologist Evan Duffey said.

The warmth will peak on Monday along the I-5 corridor and on Tuesday east of the Cascade Mountains.
Seattle and Spokane, Washington, and Portland, Oregon, are among the cities that will see temperatures approach or break records early this week.
"During the peak of summer, the average high in Portland is 82 F," Duffey said, "but on Monday, the high is expected to be 85 F, giving residents a taste of summer."
RELATED:
Forecast temperature maps
Ken Clark's western US weather blog
VIDEO: Lightning illuminates night sky above Las Vegas

Sunday and Monday will also mark the first time since 1945 that Portland started off May with two consecutive days of highs in the 80s, according to the National Weather Service (NWS) office in Portland.
Seattle typically averages one 80-degree day in May, according to the NWS office in Seattle, and could experience that as soon as Monday.
The warmth from Sunday will also persist along the Washington coast on Monday, while cooling occurs at points southward.
Dry weather and sunshine will dominate the days when the warmth peaks, allowing residents to continue to enjoy outdoor plans. Those who are sensitive to the warmth, however, should avoid strenuous activities and drink plenty of water.
Despite the air being warm, local lakes and rivers are still too cold and dangerous to jump into to cool off.
However, the early week warmth will not be new for residents Duffey said.
"Portland, for example, saw a daily record high broken five times last month, including an 87- and 89-degree day."
Those warm days helped make last month the warmest April on record for Portland with Seattle and Bellingham among the other cities that had the same feat.

Rain will return and temperatures will get sent back to more seasonable levels by midweek as a storm system moves into the West.
However, the battle between spring and summer will continue. As the storm settles over the Southwest, the Northwest will likely once again experience a surge of warmth around this coming Saturday before yet another cool shot arrives early in the following week.

UK: Dry, milder spell to come after wet and windy bank holiday

By Adam Douty, AccuWeather.com Meteorologist
May 1,2016; 9:20PM,EDT
 
 
Those looking forward to traveling or spending the bank holiday outdoors across the United Kingdom will face bouts of rain and increasingly gusty winds.
A cold front moving from northwest to southeast across the Isles on Monday will bring with it numerous showers and several heavier outbreaks of rain. The rain and gusty wind will threaten to cause travel delays on roads and through the air.

As a cold front advances to the south and east, steady rain that soaked Northern Ireland and Scotland on Sunday night will advance into North West England and northern Wales on Monday morning. Though the heaviest rain will taper off across these areas on Monday afternoon, showers will linger through the remainder of the day.
The heaviest rain will target western Scotland and North West England early on Monday morning, reducing visibility and heightening the risk of vehicles hydroplaning when traveling at highway speeds. While downpours will lessen by the midmorning hours of Monday, travelers will face additional wind-swept showers and spray from other vehicles into the afternoon.
Farther south, blustery showers will spread across the South and East of England on Monday afternoon.
While the rain wets roads and causes slower travel, a gusty wind will also bring inconveniences for anyone outdoors and could delay air travel.
RELATED:
United Kingdom Weather Center
MinuteCast® for your location
Interactive United Kingdom weather radar

The strongest winds of the bank holiday are expected in western Scotland. Gusts to around 50 mph (80 km/h) are possible with localized gusts to 60 mph (95 km/h) along the coast and on the Hebrides, potentially causing sporadic power cuts and tree damage.
There can be isolated gusts of 50 mph (80 km/h) across the rest of Scotland, northern England and northern Wales during the morning and early afternoon of Monday. Gusts of 30-40 mph (50-65 km/h) are expected elsewhere in Wales and southern England.
Motorists heading home after the holiday may feel these winds tug at their vehicles. Minor flight delays are also possible. The winds will easily toss around loose lawn items.
"Monday will not start very windy around London," AccuWeather Meteorologist Courtney Spamer said. "However, winds will increase during the day."
The winds will create choppy conditions for the decorated boats at the IWA Canalway Cavalcade in London's Little Venice area.

While it will remain breezy across Britain on Tuesday with isolated showers across the north, a turn to largely dry and milder weather is coming during the middle of the week.
High pressure will produce a southerly flow across Wales, England and southern Scotland during the middle of the week bringing the return of dry, brighter and mild conditions. The wind will also slacken making for several pleasant days.
The exception to the dry and pleasant weather will be in northern Scotland as a cold front brings several rounds of showers.

Planetary atmospheres may hold the key to identifying Earth-like worlds

By Michael Kuhne, AccuWeather.com Staff Writer
May 1,2016; 9:11PM,EDT
 
 
When NASA's Kepler spacecraft launched in 2009, its mission was to find other worlds akin to Earth orbiting the immense number of stars in the Milky Way galaxy.
In their pursuit to find other habitable worlds, astronomers look at a planet's size, the distance from its star and the planet's atmosphere - three components which are essential in sustaining life.
However, the study of planetary atmospheres remains a challenge because of the vast distances between planets and our observation instruments, Pennsylvania State University NASA Sagan Postdoctoral Fellow Paul Robertson said.
In February, San Francisco State University Astronomer Stephen Kane published a report online regarding light reflected from an exoplanet located 117 light-years from Earth. Kane and his research team were able to detect a signal of reflected starlight bouncing off the planet's atmosphere as it made its closest approach to its star.
"This is a window into planetary atmospheres," Robertson said, adding that wavelengths of reflected starlight and the degree of reflectivity can allow scientists to infer more information about a planet's unique characteristics.
The artist's concept depicts Kepler-186f, the first validated Earth-size planet to orbit a distant star in the habitable zone-a range of distance from a star where liquid water might pool on the planet's surface. (Image/NASA)
A very small amount of light is reflected from planetary atmospheres, and scientists have to analyze what is being reflected, break it up and if possible determine what wavelengths are being absorbed versus reflected, Robertson said. He cited that this particular method of study is challenging due to the limited light reflected.
In the case of HD 20782, the exoplanet observed by Kane's team, researchers speculate the reflectivity, which is determined by atmospheric composition, may indicate it has an atmosphere similar to Jupiter, boasting thick clouds of icy particles.
"If [light] is reflected, you may have some kind of molecule in the atmosphere, which you can look at and then infer [more information] from," Robertson said.
Unlike the planets in our solar system, HD 20782 has the most eccentric orbit of any planet yet discovered, which may have preserved its atmospheric reflectivity as it passed the star, according to Kane's report.
RELATED:
Clues for Earth-like life may be found by studying planets' magnetic fields
Distant dwarf planet Makemake has its own moon
SpaceX will launch private Mars missions as soon as 2018

"In some of the extrasolar, Jupiter-sized planets that tread short, circular orbits, this phenomenon does appear to strip the atmospheres of reflective particles, making the planets appear 'dark,' Kane said in his report. "But in the case of HD 20782, the atmosphere of the planet doesn't have a chance to respond. The time it takes to swing around the star is so quick that there isn't time to remove all the icy materials that make the atmosphere so reflective."
Robertson compared the highly elliptical orbit of HD 20782 to the orbits of comets, stretching far out from the star, before they slingshot quickly around the star at the closest approach.
"HD 20782 offers a particularly lucrative observing opportunity for studying the planetary atmosphere of an eccentric-orbit planet - a type not seen in our own solar system. By studying the reflected light from HD 20782, astronomers may learn more about the structure and composition of a planetary atmosphere that can withstand a brief but blistering exposure to its star," Kane said in his report.
While the composition of HD 20782 was not able to be determined by Kane's team, the reflectivity is one element of ongoing research of the unique exoplanet and its eccentric orbit. On Sept. 3, the planet will make its next closest approach to the star, Robertson said, adding that eyes will be fixed on HD 20782 for further research.
As a planet crosses in front of its star or transits at its observable angle, it produces a change in the star's brightness. The probability for an Earth-like orbit around a star similar to the sun is very low, approximately 0.5 percent, according to NASA, making this method of detection even more difficult.
Since its foundation, the Kepler mission has led to the discovery of more than 1,000 planets, some of which are Earth-sized and located within the habitable zone from their stars.
This artist's concept depicts a planetary system so compact that it's more like Jupiter and its moons than a star and its planets. Astronomers using data from NASA's Kepler mission and ground-based telescopes recently confirmed that the system, called KOI-961, hosts the three smallest exoplanets currently known to orbit a star other than our sun. (Image/NASA)
"Kepler has shown us that there are planets everywhere," Robertson said, adding NASA will continue its search for habitable worlds in the future. Two new initiatives will launch to further the search in the next three years.
A science team for NASA's Transiting Exoplanet Survey Satellite (TESS), including Kane, will have its sights set on HD 20782 after it launches no later than June of 2018.
"In a two-year survey of the solar neighborhood, TESS will monitor more than 200,000 stars for temporary drops in brightness caused by planetary transits," according to NASA.
Through a joint initiative NASA and the National Science Foundation called NN-Explore, another new instrument will be launched with help from Pennsylvania State University researchers, Robertson said. The researchers will help to develop a spectrograph called NEID, which is a high resolution tool that will be used to find additional exoplanets. The mission is set to launch in 2019.
In March, a Penn State-led research group was selected by NASA to build the $10-million instrument. The research group will create a target list of one's which may be habitable, Robertson said.
"TESS and this project are part of the next generation [of extra-solar research]," Robertson said.

Dallas: Dry pattern to dominate first week of May

By Brian Lada, Meteorologist
May 1,2016; 9:10PM,EDT
 
 
The new month will bring a new weather pattern to the Dallas area following a wet end to April.
During the second half of April, the city received nearly 4.50 inches of rain, more than double of what would usually fall during that timeframe.
This drier weather means that people in the city can put away their raincoats and umbrellas for a few days and not have to worry about them until at least the weekend.

Each day through Friday will be warmer than the last with highs starting out the week in the lower 70s F and finishing in the middle 80s F.
A normal high temperature for the start of May is right around the 80-degree mark.
This dry, seasonable weather will be good news for those looking to spend some time outside, especially for Cinco de Mayo celebrations that are set to take place in the outdoors.
RELATED:
Detailed Dallas forecast
Hourly temperature forecast for Dallas
AccuWeather MinuteCast® for your exact location

Temperatures are forecast to remain in the 80s through the weekend and into the start of next week with the chance of spotty thunderstorms returning Sunday or Monday.

Warm May Ahead For Northern Tier of the Nation

Tom Moore
Published: May 1,2016

Temperatures in May in the northern and eastern United States will be warmer than average overall, according to an updated outlook released Sunday by The Weather Company, an IBM Business. The summer forecast remains unchanged from previous outlooks and continues to call for above-average temperatures in a large part of the Lower 48.
In May, areas from the Northwest through the Midwest and Great Lakes are forecast to see temperatures the farthest above average. The expectation for a warmer than average May in the Northwest comes on the heels of the warmest April on record in Seattle and Portland, Oregon.
"The best chance for significantly above-normal temperatures will continue to be in the Pacific Northwest into the northern Plains, while the southern Plains will likely continue relatively cool and wet," said Dr. Todd Crawford, chief meteorologist.
There remains a bit of uncertainty regarding parts of the eastern U.S. for May, but temperatures should be at least near average and probably a bit above average.
Keep in mind, these outlooks are overall trends for the entire month. An individual cold front or an upper ridge of high pressure can lead to a brief period of colder or warmer weather, respectively.

June-August 

"The scales are currently tipped toward warmer than average summers," Crawford said. "In fact, the past six summers have been the hottest six-year stretch in the last 120 years and this summer should continue the recent trend."
Well-above-average temperatures are expected this summer for the northern tier of states from the Pacific Northwest into the northern Plains, Great Lakes and Northeast.
Warmer-than-average temperatures will also extend from California through the central and southern Plains and Southeast.
The only area where cooler than average temperatures are expected this summer will be across much of Texas to Louisiana.
"The historically strong El Nino event is weakening rapidly and we should transition to La Nina conditions by summer and this favors another hot summer, especially across the northern U.S.," said Dr. Crawford.
Another factor to consider regarding temperatures this summer are sea surface temperatures in the western North Atlantic, which are forecast to be warmer than we have seen over the past five years. That often results in warmer temperatures in the eastern U.S.  In addition, conditions across the Pacific Ocean, influenced by the strong El Nino, will favor warmer-than-average temperatures across much of the West, especially the Pacific Northwest.
Most computer forecast models continue to suggest that the transition from El Nino to La Nina conditions will occur this summer. Typically, La Nina summers feature hotter temperatures from the central U.S. into the Northeast, with the hottest month being July.
Crawford notes that during previous years where rapid changes from El Nino to La Nina occurred, the worst of the summer heat was focused from the northern Plains to the Great Lakes states.
Overall,  computer model guidance indicates widespread warmth with little hint of cooler than average temperatures across the nation. The West will likely see warm and dry conditions, strongly influenced by the recent El Nino.
The heat should be less significant across the southern states where temperatures should generally average around to slightly above average.

MORE: Summer Outdoors

Omega Block Pattern Shift Brings 4 Changes in the Week Ahead

Linda Lam
Published: May 1,2016

Changes are coming this week ahead due to a shift in the weather pattern that includes the redevelopment of the omega block weather pattern across North America. The changes will be particularly welcome to the severe-weather weary central U.S., but may not be cheered in the East.
(MORE: Deadly Flooding Strikes Texas)
Two areas of low pressure develop, one on the East Coast and another on the West Coast. In between, the jet stream bulges northward.
This is the second time in the last several weeks that we will have seen an omega block weather pattern develop. This time around the configuration of the omega block will be in a different geographic location and less extreme than what we saw in mid-April.
Here's how it works: an area of low pressure aloft will anchor itself in the East by midweek while another separate area of low pressure develops on the West Coast. In between will be a ridge of high pressure, or a northward bulge in the jet stream near the Plains and Rockies. Now, notice how the jet stream pattern – that ribbon of fast-flowing air some 30,000 feet above the ground - described above and depicted in the image to the right resembles the greek letter omega shown here: Ω.
The term omega block is not new — it's often first taught in basic meteorology courses. Since the jet stream is in such an exaggerated north to south alignment, this will result in the weather pattern moving very slowly for a time, which is where the term block comes into play. Essentially, the weather pattern is all clogged up which prevents weather systems from progressing at a steady pace from west to east like they normally do.
Here's a closer look at four changes we are watching due to this large-scale pattern change this week.

1.) Wetter, Cool Northeast

Jet-stream pattern in place late in the week, featuring a deep, closed upper-level low in the East.
It's been a dry spring so far in most of the East, but the pattern change will flip that around the first full week of May.
First up, throughTuesday, waves of low pressure and upper-air disturbances will bring periods of rain to the Northeast.
(MAPS: 7-Day Weekly Planner)
Then, a sharp plunge of the jet stream will nosedive out of central Canada and form a slow-moving gyre of low pressure over the Northeast late in the week into the Mother's Day holiday weekend.
It's not yet clear whether this late-week system will produce heavy rainfall in any locations, but persistent clouds and periods of rain look to be in the cards much of the week.
(FORECASTS: NYC | Boston | Philly | Wash. D.C. | Syracuse)
If any area of low pressure at the surface is able to strengthen off the East Coast, that would enhance the heavy rain threat. Again, that is not clear at this point.
Temperatures will also stay cooler than average through much of this week in the East. Highs will only be in the 50s and 60s from the Great Lakes into the Northeast.

2.) Drier Days Ahead For South-Central States


This Week's Forecast
The threat of severe thunderstorms and flash flooding will continue into Monday in parts of the South. This next round comes after storms have already brought severe weather to the region last week.
Thunderstorms are likely, especially toward the Gulf Coast, but the chance for severe thunderstorms will decrease.
By midweek, the risk of showers and thunderstorms will be confined to the Southeast. High pressure will move into the Plains, bringing a welcomed stretch of dry weather to the south-central U.S. starting Tuesday.
This is good news for the water-logged areas of the South, as this weather pattern will give areas the opportunity to dry out a bit and clean up any storm damage.
(MORE: Deadly Flooding Strikes Texas)

3.) Spring Returns to the South


Forecast Highs Early Next Week
Portions of the South have enjoyed a taste of summer this past week due to high and low temperatures that have been 10 to 15 degrees above average.
Highs have soared into the 80s and even a few lower 90s this week and low temperatures have only dipped down into the 60s and 70s, serving as a reminder that summer is right around the corner. These warm temperatures have been courtesy of high pressure, which has allowed a southerly flow to bring the warmer conditions into the South.
The warm temperatures have begun to come to an end, however, as the ridge of high pressure is sliding eastward and an area of low pressure is approaching from the west. The result will be slightly cooler temperatures, along with the chance of showers and thunderstorms.
(FORECASTS: Atlanta | Charleston, South Carolina | Jackson, Mississippi)
Temperatures will be closer to average for early May, but for many areas the temperature difference will be 10 to 15 degrees compared to the end of this past week. Highs this week will typically be in the 70s by Tuesday, with 80s toward the Gulf Coast. Lows will also be slightly cooler with temperatures dropping into the 50s for much of the South, with 60s toward the Gulf Coast and Florida.

4.) Warmer Days Ahead in the Rockies


Forecast Highs Compared to Average
Another area of the country that will see some of the big changes this week are the Rockies.
An area of low pressure brought snow to Rockies and parts of the High Plains to end April. Parts of western Nebraska and the Colorado Rockies saw near a foot of snow.
Snow showers may linger through Sunday night in parts of Colorado and northern New Mexico. Accompanying the snow will be chilly temperatures. High temperatures will be up to 30 degrees below average into early week in the Rockies and portions of the adjacent High Plains.
Mid-to-late week, the upper-level trough will be replaced by an upper-level ridge of high pressure. This will translate into warmer and drier conditions for the region.
(MAPS: 10-Day Forecast)
High temperatures will be up to 20 degrees above average by late this week in the Rockies and northern Plains. Temperatures are expected to climb into the 80s as far north as Montana. Denver will go from seeing highs in the 40s on Sunday to highs near 80 by Thursday.
MORE: Severe Weather April 26-27, 2016 (PHOTOS)

Severe Thunderstorm Watches Issued as Heavy Rain and a Few Severe Storms Expected From Gulf Coast to the East

May 1,2016
A slow-moving frontal system will keep the threat of locally heavy rain and a few severe storms in play from the Gulf Coast to parts of the East to start this week.
The National Weather Service has posted flash flood watches for extreme southeast Texas, southern Louisiana, and southwest Mississippi. This is an area where the potential for flooding will be the highest on Sunday. Flash flooding turned deadly Friday night in Palestine, Texas, where up to 7.78 inches of rain had fallen.
NOAA's Storm Prediction Center has issued the following severe weather watches:
  • A severe thunderstorm watch is in effect until 12 a.m. EDT for portions of eastern Illinois and central Indiana. The watch area includes Indianapolis.
  • A severe thunderstorm watch is valid until 12 a.m. EDT for parts of western Virginia and southeastern West Virginia. 
A tornado was reported near Darlington, Indiana Sunday night. Near Brocton, Illinois 3 inch diameter hail was observed near Sunday night and in Sugar Hill, North Carolina hail up to 2 inches in diameter caused widespread damage Sunday evening.
Trees and power lines were downed on Sunday afternoon in La Grange, Kentucky and near Murray, Kentucky. A large barn was blown over in Smithfield, Kentucky Sunday afternoon and significant wind damage was also reported to a home in Grayson, Kentcuky early Sunday evening.
Sunday morning, heavy rain caused significant flooding in southern Louisiana, including reports of cars submerged on Interstate 49 north of Lafayette and reports of water entering some homes. Rainfall totals of 6 to 9 inches had been reported from Sunday midnight through Sunday late morning.
For the more news on the latest impacts from the severe storms and heavy rain, click the link below.
(LATEST NEWS: Severe Storms, Flooding Impacts)
Scroll down for an overview of the timing and impacts for the severe storm and flood threat into the early this week.
Radar, Watches, Warnings

Current Radar with Watches and Warnings
Guide to Watches and Warnings
(MORE: View National Interactive Radar Map | Difference Between a Watch and a Warning)
Sunday Night: 
  • Locally heavy rain and a few severe storms may impact a swath from the mid-Atlantic and Southeast to the Gulf Coast.
  • Overall the potential for severe storms will be much lower than previous days, however gusty winds and hail will still be possible. Heavy rain may also cause localized flash flooding, particularly in the Lower Mississippi Valley and near the Gulf Coast, saturated from the past few days of heavy rain.
Monday:
  • Once again, any severe t-storms should be relatively few and far between from the eastern Carolinas to south Texas.
  • However, areas of locally heavy rain and flash flooding may persist in the Lower Mississippi Valley and western/northern Gulf Coast.
Below is the rainfall forecast through Monday. Keep in mind that locally heavier amounts of rain can fall in short periods of time than what is shown on the map.
The heavy rain falling on already saturated ground is likely to produce additional flooding.

Rainfall Forecast

Recap: Flooding and Severe Weather Reports Late Week

48-hour estimated rainfall ending 7 a.m. CT, Saturday, April 30, 2016 (contours) and reports of flooding (blue icons) April 29-30, 2016.
Friday night into early Saturday, evacuations were prompted in the towns of Kilgore and Hughes Springs, Texas. Homes were flooded in the Gin City community near Bradley, Arkansas. Vehicles stalled in high water in Caddo Parish, Louisiana, and a mudslide blocked a road in Plain Dealing, Louisiana. Street flooding became widespread Saturday morning in Lake Charles, Louisiana.
A cooperative observer southeast of Marshall, Texas, reported over 9 inches of rain Friday. Flooded roads even hampered National Weather Service storm survey crews trying to assess damage from Friday night's severe weather in Harrison County, Texas.
Early Saturday, 60 mph wind gusts shifted and damaged two planes at Austin-Bergstrom International Airport. Windows were also blown out of a few homes in Bastrop County from 75 mph winds, and high winds overturned a semi on I-35 near Kyle, Texas, shutting down the northbound lanes for a time. Some trees were downed in the far north Houston metro area in Montgomery and northern Harris Counties.

MORE: Strange Tornado Debris

Weather Underground National Forecast for Sunday,May 1,2016

By: nationalsummary , 10:00PM,GMT on April 30,2016





 
Weather Underground Forecast for Sunday,May 1,2016

An area of low pressure will move across the Midwest on Sunday, while a separate system shifts over the Southwest.

A broad area of low pressure will push east northeast over the middle Mississippi Valley and the Ohio Valley. This system will usher widespread rain and thunderstorms across the Midwest, the Mid-Atlantic and the Northeast on Sunday. Flash flood watches are in place for the central Appalachians. Cold air will also support the development of mixed precipitation in northwest New England. A cold frontal boundary associated with this system will stretch southwestward from the middle Mississippi Valley to the southern Plains. As this frontal boundary transitions eastward, it will initiate heavy rain and strong thunderstorms across the southern Plains, the Deep South and the Southeast. Prolonged heavy rain will bring threats of flash flooding to eastern Texas, Louisiana and southern Mississippi. The northern Plains will experience dry weather on Sunday.

Meanwhile, a low pressure system will drift slowly northeastward from the Southwest to the central Plains. This system will bring a mixture of rain and high elevation snow to the Intermountain West, while showers and isolated thunderstorms affect the Desert Southwest. Scattered snow showers will also trail this system over the higher elevations of the Sierra Nevada. Winter storm warnings and winter weather advisories are in place for northern New Mexico.

High pressure will influence dry weather from southwest California to the Pacific Northwest.

This Date in Weather History for May 1,2016 from weatherforyou.com

Weather History
For Sunday,May 1,2016
 
 
 
 
1854 - The Connecticut River reached a level of nearly twenty-nine feet at Hartford (the highest level of record up until that time). The record height was reached in the midst of a great New England flood which followed sixty-six hours of steady rain. (David Ludlum)
1935 - Snow, ice and sleet brought winter back to parts of southeast Minnesota. Minneapolis received three inches of snow to tie their May record which was established in 1892. (1st-2nd) (The Weather Channel)
1954 - The temperature at Polebridge MT dipped to 5 degrees below zero to esablish a state record for the month of May. (The Weather Channel)
1987 - Thunderstorms produced large hail and heavy rain in Texas. Baseball size hail pounded Dublin, and 3.75 inches of rain soaked Brady. (The National Weather Summary) (Storm Data)
1988 - Strong southerly winds ahead of a cold front crossing the Rocky Mountain Region gusted to 90 mph at Lamar CO. High winds created blinding dust storms in eastern Colorado, closing roads around Limon. (The National Weather Summary) (Storm Data)
1989 - Thunderstorms produced heavy rain in the southeastern U.S. Rainfall totals of 1.84 inches at Charlotte NC and 2.86 inches at Atlanta GA were records for the date. Strong thunderstorm winds uprooted trees in Twiggs County GA. (The National Weather Summary) (Storm Data)
1990 - Thunderstorms produced severe weather from northern Alabama to North Carolina. There were sixty-three reports of large hail or damaging winds, with hail four inches in diameter reported near Cartersville GA. Ten cities in the southeastern U.S. reported record high temperatures for the date as readings warmed into the 90s. Jacksonville FL reported a record high of 96 degrees. Late night thunderstorms over central Texas produced up to ten inches of rain in southern Kimble County and northern Edwards County. (The National Weather Summary) (Storm Data)