Thursday, April 28, 2016

More Severe Thunderstorms, Flooding Rain Into the Weekend in the Southern Plains

April 28,2016
Following Tuesday's outbreak of severe thunderstorms in the Plains and Midwest, and Wednesday's severe weather in the Deep South and Midwest, another round of severe thunderstorms and flooding rain is poised for some of the same areas into this weekend.
(LATEST NEWS: Early Week Severe Outbreak)

Another southward plunge of the jet stream will swing through the Southwest and southern Rockies, then punch into the southern Plains Friday. This will ignite more severe thunderstorms, including potentially some tornadoes. In addition, multiple rounds of rainfall could lead to a increased risk of flash flooding.
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)
Here's an overview of the timing and impacts for the severe threat into the weekend.

Severe Weather Outlook

Thursday
  • Severe/Heavy Rain Threat Area #1: The chance of a few severe storms may linger in parts of the Southeast and Gulf Coast regions. Localized damaging wind gusts and hail would be the main concerns. Heavy rain could cause flooding, particluarly near the Gulf Coast.
  • Cities: Atlanta | Raleigh
  • Severe/Heavy Rain Threat Area #2: An impulse of energy ahead of the Southwest U.S. upper-level system should trigger the formation of thunderstorms in parts of the Texas and Oklahoma panhandles, southwest Oklahoma and possibly far southwest Kansas late Thursday afternoon and evening. Thunderstorms may become more numerous after midnight in Oklahoma, north and northwest Texas into parts of Louisiana. Large hail and damaging wind gusts will be the primary hazards, however a tornado cannot be ruled out. 
  • Cities: Amarillo, Texas | Dallas-Fort Worth

Thursday Night's Thunderstorm Forecast
Friday
  • A significant piece of the jet stream dip surges east allowing for a potentially more widespread round of severe storms in parts of Oklahoma and Texas, possibly extending into southern Arkansas, northern Louisiana and Mississippi.
  • Threats: Supercell thunderstorms are possible, which could unleash large hail, damaging wind gusts and tornadoes. The magnitude of the tornado threat remains uncertain at this time. Heavy rainfall is likely to trigger local flash flooding, especially in east Texas, southeastern Oklahoma, northern and western Louisiana and southern Arkansas.
  • Cities: Austin | Dallas-Fort Worth | Oklahoma City

Friday's Thunderstorm Forecast
Saturday
  • Severe thunderstorms are possible from the mid-Mississippi Valley and Lower Ohio Valley to the Texas and western Louisiana Gulf Coast.
  • Threats: Damaging wind gusts, large hail and perhaps a few tornadoes. How much severe weather there will be remains uncertain given the widespread nature of clouds and rain which may hold down instability. Once again, heavy rainfall also will be a concern and could cause flooding in parts of Arkansas, east Texas and Louisiana.
  • Cities: Houston | Little Rock | Shreveport, Louisiana

Saturday's Thunderstorm Forecast
Below is the rainfall forecast through Sunday. The heaviest rain is expected in parts of east Texas, southeast Oklahoma, Arkansas and Louisiana. Keep in mind that locally heavier amounts of rain can fall in short periods of time than what is shown on the map.

Rainfall Forecast

MORE: Strange Tornado Debris

No comments:

Post a Comment