Subj : DAY48SVR: Nws Storm Prediction Center Norman Ok
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Fri Feb 14 2025 08:52:58

ACUS48 KWNS 140852
SWOD48
SPC AC 140851

Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0251 AM CST Fri Feb 14 2025

Valid 171200Z - 221200Z

....DISCUSSION...
Strong surface high pressure is forecast to extend from the northern
Rockies/Plains through much of the Midwest on Day 4/Mon. A prior
cold frontal passage into the Atlantic and Gulf waters will leave a
dearth of boundary-layer moisture east of the Rockies. An upper
trough will deepen on Day 5/Tue, moving from the Southwest and Great
Basin to the Atlantic coast by Day 8/Fri. A weak surface low may
develop across Texas on Day 5/Tue ahead of the upper trough,
allowing some moisture return across southeast TX. Some thunderstorm
activity is possible ahead of a strong Arctic cold front, but severe
potential appears limited. The Arctic front will continue to
progress eastward, moving offshore the Gulf coast by Day 7/Thu
morning. A very cold and dry airmass in the wake of this system will
preclude thunderstorm potential across the CONUS late in the
forecast period.

...Leitman.. 02/14/2025

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