By Brett Rathbun, AccuWeather.com Meteorologist
December 8,2015; 2:08AM,EST
Progressively milder air will surge across the eastern United States through this weekend, continuing to keep winterlike air at bay.
While the mildest air will hold off until this weekend, much of this week will be mostly rain-free and see above normal temperatures.
High temperatures through Friday will average between 5 and 10 degrees above average for the second week of December.
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"The storminess in the western United States is to thank for the mild pattern across the eastern United States this week," AccuWeather Meteorologist Evan Duffey said.
The coolest day this week along the Interstate-95 corridor from Washington, D.C., to Boston will be on Tuesday with high temperatures right around normal.
A couple weak storm systems will pass across the Midwest and Northeast during the week, but are not expected to produce a soaking rain.
Conditions will be fantastic for anyone still needing to head to a local farm and purchase a Christmas tree or to hang holiday decorations outside your home.
"The pattern won't just be mild this week, but getting progressively milder into the weekend," AccuWeather Senior Meteorologist Joe Lundberg said.
By this weekend, the jet stream will lift to the north into southern Canada allowing warm air to build across the eastern U.S. from the Gulf of Mexico and the southern Plains.
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"The mild air will peak this weekend, allowing for some record-high temperatures to be challenged," Duffey said.
The jet stream is a narrow band of strong winds in the upper levels of the atmosphere that help to separate the milder air to the south and the cooler air to the north.
Temperatures will be between 10 and 30 degrees above normal this weekend from the Midwest to the Northeast and interior South.
High temperatures by Saturday will be from the 40s Fahrenheit across northern New England to the 50s from southern New England into Michigan, 60s across the mid-Atlantic, Ohio Valley and Tennessee Valley and 70s across the Gulf Coast states.
Records will be challenged across a large portion of the East this weekend including New York City, Philadelphia, Washington, D.C., Indianapolis, Detroit, Louisville and Nashville.
"To put into perspective how mild it will be, overnight low temperatures will be higher than the average daytime high temperature for this time of year," AccuWeather Meteorologist Michael Doll said.
These temperatures are more common during the middle of October rather than the second full week of December.
The weekend burst of warmth will be short-lived as a storm system is expected to bring a soaking rain on Sunday into next Monday. Cooler air will return across the Eastern states early next week but it will remain rather mild.
Snow lovers may have to wait until the new year for any significant snow across the eastern U.S.El Niño is to blame for the lack of snow.
While the month of November ended as one of the warmest months on record for many cities across the East, the same could happen in December.
Anders Updale ·
If this El Nino pattern were to continue into next Summer, would the Northeast be facing more humid weather by Summer 2016?
Michael Carenza Jr. ·
Record-challenging warmth sounds like a broken record at this point. It's the headline each month.
Michael Carenza Jr. ·
Bill Ross, I was not referring that far back. Last February is history.
Joshua Wade ·
Bill Ross Chances are, this February (2016) won't be anywhere near as cold as last February (2015).
Cory Morrison ·
Between November 2011-March 2012, the term was probably used even more often.
Cindy Holmes LaRose ·
Wait
until February. December...not eventful where weather is concerned.
January...we might feel winter. February is going to be icy, cold, and
snowy. I don't know if you remember, but in 2015 spring was slow to
come. It wasn't really warm until mid-July. In another century, we will
probably start having summer starting in September.
Cory Morrison ·
I
agree that it may turn colder in the 2nd half of winter. However, this
does not necessarily mean that much of 2016's weather will resemble
2015's weather.
Cindy Holmes LaRose ·
Cory
Morrison Well, where I live it never gets really cold until February. I
was a kid growing up in the '70s in Connecticut. The weather wasn't
horribly cold until November. I moved to Vermont in the late '80s. It
didn't get horribly cold until January and the ice and blizzards didn't
get here until February. In late March, it was starting to show signs of
spring. In late May it was warm. The weather is not the same as it was
when I was a kid. I like it though. More people are walking, not
driving, and gas prices are going down.
Cory Morrison ·
What Bill Ross said, since I am sure you all know how I feel about this current pattern.
Dan Silenius ·
In
the Southeast, this will be the FIFTH warm December in a row. That has
never happened before in the last 100 years or so, and is just bizarre.
How long will this pattern of warm Decembers continue?
Aaron Ginther ·
I've
been thinking the same thing. Decembers have been trending warm since
2010, yet Februaries have been cold over the past 3 years. We're
certainly overdue for a cold December. It's usually La Nina's (with
exceptions) that have cold Decembers, instead of El Nino's.
Cory Morrison ·
I think that if a La Nina or La Nada is in place next year, December 2016 could be cold.
Joshua Wade ·
As
being thankful for a mild December, maybe winter 2015-16 will be much
milder than the last to after all. Heck, maybe February-March 2016 will
be much milder and much more springlike than last year. I was
completely wrong about my prediction, I would have t accept my constant
flaw.
Bill Ross ·
Keep
up the recent great work Mother Nature! You need to make amends for
the horrible weather from Feb 2013 to April 2015, including two
record-breaking cold winters, and a year without a summer in 2014. plus
as a by-product, the western US and Canada need some rain and snow for a
change.
Christy Graening ·
Amen!! I agree!! I'm enjoying the milder weather!!
David Colantuono ·
Works at Unemployed
While I agree that the West needs rain and snow, that's all I can agree with. I have no comment on the rest of it.
I
am not a big fan of recordd warmth in december. It is the worst
december i've ever seen. I prefer colder weather because it lets me to
go do old school bowling and brewery nights.
Cory Morrison ·
I recall you saying a while ago that you prefer hot weather because it lets you do activities. Which do you prefer?
David Colantuono ·
Works at Unemployed
Cory
Morrison I could be wrong, but I'm guessing he likes it hot when it's
supposed to be hot...in Summer. But, now that it's the end of Autumn
and heading to Winter, I'm guessing he likes it cold when it's supposed
to be cold. That's just my guess and, again, I could be wrong.
David
Colantuono he probably likes it when the weather is not out of season
(Cold winters, warm springs, hot summers, cool falls).
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