SPC 1630Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
1008 AM CST Thu Dec 10 2020

Valid 101630Z - 111200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Sporadic general thunderstorms are expected over the Southwest this
afternoon and the southern Great Plains tonight into early Friday.

...Synopsis...

Steeper mid-level lapse rates associated with cold temperatures
aloft (-20C at 500 mb) and forcing for ascent attending a shortwave
trough moving through AZ as of late morning will maintain weak
instability and a modest threat for a few thunderstorms from AZ into
western NM today. As the shortwave trough moves farther east into
the southern Plains tonight, additional shallow convection will
likely develop along the evolving warm conveyor belt where
instability might become sufficient for a few lightning flashes.

..Dial.. 12/10/2020

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