Alert archive / Alabama / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 221, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 20, 2021, 3:31 PM CDT for 4 counties in Alabama. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 20, 2021, 3:31 PM CDT (20:31 UTC)
- Expired
- Aug 20, 2021, 4:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Coffee County, AL, Dale County, AL, Geneva County, AL, Houston County, AL
The radar
The Ft Rucker radar (KEOX), 40 km from the middle of the area, began a volume at 20:32 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.5 hours before the alert went out and 159 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 675 J/kg
- Mixed-layer CIN
- -74 J/kg
- Mixed-layer LCL
- 1045 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
724 WUUS52 KTAE 202031 SVRTAE ALC031-045-061-069-202115- /O.NEW.KTAE.SV.W.0221.210820T2031Z-210820T2115Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Tallahassee FL 331 PM CDT Fri Aug 20 2021 The National Weather Service in Tallahassee has issued a * Severe Thunderstorm Warning for... Southern Dale County in southeastern Alabama... Southeastern Coffee County in southeastern Alabama... Northeastern Geneva County in southeastern Alabama... Northwestern Houston County in southeastern Alabama... * Until 415 PM CDT. * At 331 PM CDT, a severe thunderstorm was located 8 miles northwest of Hartford, or 9 miles north of Geneva, moving east at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Daleville, Dothan, Hartford, Taylor, Midland City, Slocomb, Newton, Pinckard, Malvern, Rehobeth, Clayhatchee, Grimes, Chancellor, Hollis Dairy Road, Hendrix Crossroad, Cairns Aaf, Light, Wicksburg, Green Acres and High Bluff. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3106 8587 3123 8592 3137 8548 3111 8541 TIME...MOT...LOC 2031Z 256DEG 18KT 3117 8582 TORNADO...POSSIBLE HAIL...<.75IN WIND...60MPH $$
2 follow-up statements
606 WWUS52 KTAE 202049 SVSTAE Severe Weather Statement National Weather Service Tallahassee FL 349 PM CDT Fri Aug 20 2021 ALC031-045-061-069-202115- /O.CON.KTAE.SV.W.0221.000000T0000Z-210820T2115Z/ Dale AL-Coffee AL-Geneva AL-Houston AL- 349 PM CDT Fri Aug 20 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR SOUTHERN DALE...SOUTHEASTERN COFFEE...NORTHEASTERN GENEVA AND NORTHWESTERN HOUSTON COUNTIES... At 349 PM CDT, a severe thunderstorm was located near Hartford, or 7 miles south of Daleville, moving east at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Daleville, Dothan, Taylor, Midland City, Newton, Pinckard, Malvern, Clayhatchee, Grimes, Chancellor, Hollis Dairy Road, Green Acres, High Bluff, Bald Hill, Power Dam Road, Cool Springs, Kelly Springs, Cairns Aaf, Bailey Crossroad and W. Main/brannon St. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3111 8588 3123 8592 3137 8548 3116 8542 TIME...MOT...LOC 2049Z 270DEG 18KT 3119 8572 HAIL...<.75IN WIND...60MPH $$
300
WWUS52 KTAE 202106
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
406 PM CDT Fri Aug 20 2021
ALC031-045-061-069-202115-
/O.EXP.KTAE.SV.W.0221.000000T0000Z-210820T2115Z/
Dale AL-Coffee AL-Geneva AL-Houston AL-
406 PM CDT Fri Aug 20 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN DALE...SOUTHEASTERN
COFFEE...NORTHEASTERN GENEVA AND NORTHWESTERN HOUSTON COUNTIES WILL
EXPIRE AT 415 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds to 40 mph are still possible with this thunderstorm.
LAT...LON 3111 8588 3123 8592 3137 8548 3116 8542
TIME...MOT...LOC 2105Z 256DEG 18KT 3121 8563
$$The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 2:31 PM CDT | Special Weather Statement | TAE | Coffee, Dale, Geneva | 59 min |
Nearby
Severe Thunderstorm Warnings in Alabama, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.