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Topic: SPC Dec 18, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook (Read 18 times) previous topic - next topic

SPC Dec 18, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook

SPC Dec 18, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook

[html]SPC 0830Z Day 3 Outlook
     
Day 3 Outlook Image

Day 3 Convective Outlook 
NWS Storm Prediction Center Norman OK
0203 AM CST Wed Dec 18 2024

Valid 201200Z - 211200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are not expected across the Lower 48 on Friday.

...Synopsis...

A broad upper trough will envelop much of the eastern half of the
CONUS on Friday. Meanwhile, another upper trough will approach the
Pacific coast late in the period, while upper ridging persists over
the West. At the surface, high pressure will build over the central
U.S. and a cold front will develop well south into the Gulf of
Mexico and offshore the Atlantic coast.  This will result in a dry
continental airmass over much of the U.S. Isolated thunderstorms are
possible over warmer waters offshore from the FL east coast and the
Outer Banks. Any thunderstorms associated with the eastern Pacific
upper trough will remain well offshore as well. Given a dearth of
boundary-layer moisture and a stable airmass, inland thunderstorms
are not expected across the Lower 48 on Friday.

..Leitman.. 12/18/2024


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Source: SPC Dec 18, 2024 0830 UTC Day 3 Severe Thunderstorm Outlook (http://ht**://www.spc.noaa.gov/products/outlook/day3otlk_0830.html)