SPC AC 220513
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1113 PM CST Fri Jan 21 2022
Valid 221200Z - 231200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
Severe weather is not expected across the U.S. today.
Mean upper troughing will continue over the eastern half of the U.S.
today, with several smaller-scale features rotating through the
larger-scale wave. Meanwhile in the West, ridging will prevail,
aside from an upper low that is progged to remain centered in the
vicinity of the Arizona/Mexico border through the period.
At the surface, the trailing portion of a cold front crossing the
western Atlantic will move slowly southward across the Florida
Peninsula, and eventually offshore during the second half of the
period. Elsewhere, high pressure will prevail across much of the
country, though the trailing portion of a Canadian cold front will
cross the Great Lakes region during the day. In the wake of this
front, a clipper-type low is forecast to move across the Northern
Plains during the first half of the period, and into the Midwest
Given cold continental air across much of the country, thunderstorm
activity will remain confined to areas south of the front crossing
Florida. Showers are expected near the front, and possibly a
thunderstorm or two over far southern Florida during the afternoon.
Severe weather is not expected.
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