SPC 2000Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0133 PM CST Mon Dec 28 2020

Valid 282000Z - 291200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not expected through early Tuesday.

No changes have been made to the outlook. See the previous
discussion below for more information.

..Dean.. 12/28/2020

.PREV DISCUSSION... /ISSUED 1033 AM CST Mon Dec 28 2020/

...Southern CA...
Low-topped showers with isolated thunderstorms will remain possible
into this evening within a steep low to mid-level lapse environment
amid meager buoyancy. The thunder threat will subside from west to
east along the coast as the final impulse embedded within the
broader shortwave trough (currently just offshore of Santa Barbara
county) moves southeast towards San Diego. 

...Northern OK and southern KS...
Strengthening warm/moist advection between 850-700 mb may yield
scant MUCAPE by 09-12Z. A swath of elevated convection is expected
to develop during this time frame and sporadic lightning flashes
will be possible.

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