Day 4-8 Severe Weather Outlook Issued on Nov 22, 2021
Updated: Mon Nov 22 09:33:03 UTC 2021
Day 4 Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Day 5 Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Day 6 Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Day 7 Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
No Risk Areas Forecast
Day 8 Risk
Area (sq. mi.)
Area Pop.
Some Larger Population Centers in Risk Area
No Risk Areas Forecast
D4
Thu, Nov 25, 2021 - Fri, Nov 26, 2021
D7
Sun, Nov 28, 2021 - Mon, Nov 29, 2021
D5
Fri, Nov 26, 2021 - Sat, Nov 27, 2021
D8
Mon, Nov 29, 2021 - Tue, Nov 30, 2021
D6
Sat, Nov 27, 2021 - Sun, Nov 28, 2021
(All days are valid from 12 UTC - 12 UTC the following day)
Note: A severe weather area depicted in the Day 4-8 period indicates 15%, 30% or higher probability for severe thunderstorms within 25 miles of any point.
PREDICTABILITY TOO LOW is used to indicate severe storms may be possible based on some model scenarios. However, the location or occurrence of severe storms are in doubt due to: 1) large differences in the deterministic model solutions, 2) large spread in the ensemble guidance, and/or 3) minimal run-to-run continuity.
POTENTIAL TOO LOW means the threat for a regional area of organized severe storms appears unlikely (i.e., less than 15%) for the forecast day.
Forecast Discussion
ZCZC SPCSWOD48 ALL
ACUS48 KWNS 220931
SPC AC 220931
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0331 AM CST Mon Nov 22 2021
Valid 251200Z - 301200Z
...DISCUSSION...
A cold front is forecast to stretch from Lower MI southwestward into
the TX Hill country early D4/Thursday, with continued southeastward
progression expected throughout the day. Thunderstorms are possible
near this front, but limited buoyancy and displacement south of the
stronger flow aloft should limit severe storm coverage.
Stable conditions are expected across the central and eastern CONUS
in the wake of this front on D5/Friday. Another front is expected to
move through the Plains on D6/Saturday and D7/Sunday, reinforcing
the already stable conditions.
..Mosier.. 11/22/2021
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