549
ACUS03 KWNS 241921
SWODY3
SPC AC 241920

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0120 PM CST Wed Dec 24 2025

Valid 261200Z - 271200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe storms are not expected across the continental U.S. Friday or
Friday night.

...Synopsis...
An expansive upper ridge centered over the Plains States will begin
to weaken as it moves eastward Friday. Flow aloft will become
increasingly zonal as broad troughing over the West Coast moves
inland. With continued moisture transport and southwesterly flow in
place over much of the West, isolated storms could be ongoing across
parts of the West Coast and southern CA early. However, little to no
severe threat is expected given the weak buoyancy. Troughing is
forecast to move farther inland quickly, limiting the thunderstorm
threat Friday and Friday night.

...Upper OH Valley...
A secondary low-amplitude upper trough will develop over the
northeastern US late Friday. As it moves southeastward, a weak,
clipper-style, surface low will deepen across the upper OH Valley
and central Appalachians. Cool mid-level temperatures and modest
low-level moisture ahead of the low and trailing cold front could
support weak elevated buoyancy into early Saturday. Isolated
thunderstorms are possible into early Saturday. However, with less
than 500 J/kg of MUCAPE, severe storms appear unlikely.

..Lyons.. 12/24/2025

$$