SPC 0100Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0638 PM CST Thu Dec 10 2020

Valid 110100Z - 111200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Severe thunderstorms are not forecast through tonight across the
contiguous United States.

...Synopsis...
Water-vapor imagery this evening shows a potent mid-level shortwave
trough over western NM, and this feature is forecast to move into
the southern High Plains by early Friday morning.  Strong
differential cyclonic vorticity advection has likely contributed to
a few thunderstorms over NM this evening with the El Paso, TX 00z
raob sampling marginal instability (near 100 J/kg MUCAPE).  However,
thunderstorm activity will shift away from the mid-level vorticity
lobe early this evening to a zone of increasing isentropic lift
located from southwest TX northeastward into central OK late
tonight.  A gradual increase in shower coverage with a few widely
spaced thunderstorms are possible, mainly 08-12 UTC (2am-6am CST).

..Smith.. 12/11/2020

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