Day 4-8 Severe Weather Outlook Issued on Feb 9, 2021
Updated: Tue Feb 9 09:22:03 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
Fri, Feb 12, 2021 - Sat, Feb 13, 2021
D7
Mon, Feb 15, 2021 - Tue, Feb 16, 2021
D5
Sat, Feb 13, 2021 - Sun, Feb 14, 2021
D8
Tue, Feb 16, 2021 - Wed, Feb 17, 2021
D6
Sun, Feb 14, 2021 - Mon, Feb 15, 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 090919
SPC AC 090919
Day 4-8 Convective Outlook
NWS Storm Prediction Center Norman OK
0319 AM CST Tue Feb 09 2021
Valid 121200Z - 171200Z
...DISCUSSION...
Severe potential will be low during the Day 4-8 period. Strong
surface high pressure and an arctic airmass will persist across much
of the CONUS through at least Day 7/Monday. Thunderstorms are
possible across parts of GA/FL on Day 4/Friday as a cold front sags
southward and stalls over northern FL. Severe storms are not
expected with this activity given poor lapse rates and weak forcing.
Given the persistent arctic airmass over the eastern two-thirds of
the CONUS, thunderstorm activity will remain limited.
..Leitman.. 02/09/2021
CLICK TO GET WUUS48 PTSD48 PRODUCT