Severe Weather Outlook

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Outlook for Thursday, January 21

Outlook Summary

Severe weather is not expected across the U.S. on Thursday.

Outlook Images

overview

tornado low

wind low

hail low

Detailed Outlook

SPC AC 201712

Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1112 AM CST Wed Jan 20 2021

Valid 211200Z - 221200Z

NO SEVERE THUNDERSTORM AREAS FORECAST

### SUMMARY

Severe weather is not expected across the U.S. on Thursday.

Synopsis

The upper low over the lower Colorado River Valley/northwest Mexico will weaken and become an open wave as it progresses east/northeast across New Mexico, and moves into the southern Plains overnight. Cooling temperatures aloft near the compact low/shortwave trough will result in steep midlevel lapse rates and enough instability to support isolated lightning flashes near the Colorado Valley and into southern AZ.

Further east, a southern and northern stream jet over the TN Valley/southern states and the Midwest will merge as a broad trough envelopes the eastern half of the country. Modest cooling aloft as the upper southwestern upper trough approaches during the evening and nighttime hours will allow for modest instability across portions of north TX into the lower MS Valley. A few lightning flashes could accompany showers during the later half of the forecast period.

..Leitman.. 01/20/2021

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NOTE: THE NEXT DAY 2 OUTLOOK IS SCHEDULED BY 0700Z

National Risk Overview

Wednesday, January 20
TORNADO: low
HAIL: low
WIND: low
Thursday, January 21
TORNADO: low
HAIL: low
WIND: low
Friday, January 22
ANY SEVERE: low
Saturday, January 23
ANY SEVERE: low / uncertain
Sunday, January 24
ANY SEVERE: low / uncertain
Monday, January 25
ANY SEVERE: low / uncertain
Tuesday, January 26
ANY SEVERE: low / uncertain
Wednesday, January 27
ANY SEVERE: low / uncertain

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