Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0625 AM CST Wed Dec 31 2025
Valid 311300Z - 011200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Isolated thunderstorms are possible along coastal southern
California very late in the period.
...Southern CA...
A southern-stream upper-level trough will approach the southern CA
coast late tonight. Latest model guidance suggests increasing
large-scale ascent will approach the coast, contributing to isolated
convection along/ahead of a weak front as it surges inland,
primarily after 09z. Forecast soundings along the coast suggest
thunderstorms should be elevated in nature, with initial convection
likely rooted at or above 850mb. Weak buoyancy and shear suggests
minimal potential for severe storms prior to 12z Thursday.
..Bunting/Weinman.. 12/31/2025
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