SPC AC 190044
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0744 PM CDT Mon Oct 18 2021
Valid 190100Z - 191200Z
...NO SEVERE THUNDERSTORM AREAS FORECAST...
The risk for severe thunderstorms appears negligible across the U.S.
...01Z Outlook Update...
Forcing for ascent and mid-level cooling, associated with a closed
low migrating across the eastern Great Basin into the Wyoming and
Colorado Rockies tonight, may continue to support destabilization
marginally supportive of convection briefly capable of producing
lightning. Isolated, brief weak thunderstorm development might also
still be possible this evening across the mountains of southwest
Texas, beneath difluent, cyclonic mid/upper flow. Otherwise, dry
and/or stable conditions will generally prevail across much of the
rest of the U.S., with negligible risk for thunderstorms.
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NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z