Severe Storm Outlook Narrative (AC)
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000
ACUS02 KWNS 240635
SWODY2
SPC AC 240634

Day 2 Convective Outlook
NWS Storm Prediction Center Norman OK
1234 AM CST Sat Feb 24 2018

Valid 251200Z - 261200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE GULF COAST REGION...

...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 Georgia.

...Western and Central Gulf Coast to Western Georgia...
Southwest mid-level flow will be in place across most of the eastern
half of the nation on Sunday. At the surface, a cold front will
advance southward into east Texas, southern Louisiana, southern
Mississippi and southern Alabama. Surface dewpoints should be in the
lower to mid 60s F just ahead of the front which will contribute to
the development of weak instability by afternoon. Surface heating
combined with low-level convergence along the front will provide
support for isolated to scattered thunderstorm development. In spite
of the weak instability, moderate deep-layer shear is forecast
across the western and central Gulf Coast. NAM forecast soundings at
21Z on Sunday from southeast Texas to southern Mississippi show 0-6
km shear in the 35 to 45 kt range. This may be enough for marginally
severe wind gusts in places where low-level lapse rates become the
steepest.

..Broyles.. 02/24/2018

$$



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