Official

SPC Dec 20, 2024 1300 UTC Day 1 Convective Outlook

SPC 1300Z Day 1 Outlook

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0644 AM CST Fri Dec 20 2024

Valid 201300Z - 211200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe weather is not forecast across the contiguous United States
through tonight.

...Synopsis...
Water-vapor imagery this morning shows an upper trough centered over
the Great Lakes, with this feature forecast to move east into the
Northeast and east of the Mid-Atlantic states by late tonight. 
Farther west, a mid-level ridge will reside over the Rockies with an
upper trough over the eastern Pacific approaching the northern
CA/Pacific Northwest coast late.  Scant instability may develop and
result in a couple of thunderstorms late tonight near the immediate
northern CA coast as a strong WAA regime impinges on this region.

..Smith/Goss.. 12/20/2024

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