Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0637 AM CST Fri Dec 29 2023
Valid 291300Z - 301200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Severe thunderstorms are not forecast through tonight across the
Lower 48 states.
...Synopsis...
Water-vapor imagery early this morning shows a potent mid- to
upper-level trough near -130 deg W moving east towards the West
Coast. This large-scale trough will reach the CA coast by early
Saturday morning. Cold-air advection in the mid levels associated
with the approaching trough and increased large-scale forcing for
ascent, will favor the development of showers and a few
thunderstorms moving ashore from Point Conception to southwest OR.
Pockets of scant instability will likely limit both thunderstorm
coverage/intensity. Elsewhere across the contiguous U.S., surface
high pressure will influence conditions and be hostile for
thunderstorm activity.
..Smith/Marsh.. 12/29/2023
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