SPC 2000Z Day 1 Outlook

Day 1 Outlook Image

Day 1 Convective Outlook  
NWS Storm Prediction Center Norman OK
0159 PM CST Tue Dec 22 2020

Valid 222000Z - 231200Z

...NO THUNDERSTORM AREAS FORECAST...

...SUMMARY...
Thunderstorms are generally not expected through tonight.

...20Z Update...
A few lightning flashes have occurred early this afternoon across
parts of northern Utah near an eastward-advancing cold front.
However, limited thunderstorm potential (sub-10 percent) is
perceived across the region the remainder of the afternoon/evening.

..Guyer.. 12/22/2020

.PREV DISCUSSION... /ISSUED 1016 AM CST Tue Dec 22 2020/

Relatively dry and stable conditions are expected to preclude
organized thunderstorms across the CONUS today.  An isolated
lightning flash or two is possible in the Black Hills vicinity this
afternoon and evening as a strong shortwave trough approaches.  This
activity should be very sparse, and may not reach sufficient depth
for charge separation.

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