Severe Storm Outlook Narrative (AC)
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000
ACUS03 KWNS 230820
SWODY3
SPC AC 230819

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0219 AM CST Fri Feb 23 2018

Valid 251200Z - 261200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE LOWER MISSISSIPPI VALLEY NORTHEASTWARD INTO PARTS OF WESTERN AND
NORTHERN GEORGIA...

...SUMMARY...
Thunderstorms associated with a few strong wind gusts will be
possible on Sunday from the Texas Gulf Coast east-northeastward
across the central Gulf Coast states into western and northern
Georgia.

...Central Gulf Coast States/Northern and Western Georgia...
An upper-level trough is forecast to move quickly eastward into the
Great Plains on Sunday as southwest mid-level flow remains over most
of the eastern half of the nation. At the surface, a cold front is
forecast to move into the Gulf Coast states and stall out around
midday. Ahead of the front, surface dewpoints should be in the lower
to mid 60s F. This along with surface heating just ahead of the
front should result in a corridor of weak instability. The weak
instability is forecast to overlap 0-6 km shear in the 55 to 65 kt
range. The combination of weak instability and strong deep-layer
shear may be enough for brief marginally severe wind gusts near peak
heating.

..Broyles.. 02/23/2018

$$



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