Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 131, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at May 12, 2021, 7:21 AM CDT for 4 counties in Florida; Geneva County, Alabama. It was in force for 54 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
- May 12, 2021, 7:21 AM CDT (12:21 UTC)
- Expired
- May 12, 2021, 8:15 AM CDT
- In force
- 54 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Geneva County, AL, Bay County, FL, Holmes County, FL, Walton County, FL, Washington County, FL
The radar
The Eglin Afb radar (KEVX), 10 km from the middle of the area, began a volume at 12:25 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 12, 7:14 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.4 hours before the alert went out and 167 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
- 263 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 1066 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 139 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
652
WUUS52 KTAE 121221
SVRTAE
ALC061-FLC005-059-131-133-121315-
/O.NEW.KTAE.SV.W.0131.210512T1221Z-210512T1315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
721 AM CDT Wed May 12 2021
The National Weather Service in Tallahassee has issued a
* Severe Thunderstorm Warning for...
Geneva County in southeastern Alabama...
Northwestern Bay County in the Panhandle of Florida...
Southeastern Walton County in the Panhandle of Florida...
Holmes County in the Panhandle of Florida...
Washington County in the Panhandle of Florida...
* Until 815 AM CDT.
* At 721 AM CDT, severe thunderstorms were located along a line
extending from near Samson to near De Funiak Springs to near Eglin
Air Force Base to near Destin, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Panama City Beach, Vernon, Santa Rosa Beach, Bonifay, Geneva,
Chipley, Graceville, De Funiak Springs, Hartford, Slocomb, Eglin
Air Force Base, Bradford, Union, Live Oak, Freeport, Malvern, Ponce
De Leon, Caryville, Wausau and Esto.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3042 8631 3039 8626 3042 8627 3039 8611
3044 8616 3048 8614 3046 8619 3050 8620
3049 8625 3062 8614 3120 8598 3120 8549
3100 8549 3085 8560 3083 8550 3059 8551
3012 8589 3022 8605 3030 8639 3031 8639
TIME...MOT...LOC 1221Z 282DEG 32KT 3117 8603 3080 8611 3059 8618 3033
8645
HAIL...1.00IN
WIND...60MPH
$$
25-CAMPThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 11, 7:54 PM CDT | Special Weather Statement | TAE | Jefferson | 36 min |
| May 11, 8:30 PM CDT | Special Weather Statement | TAE | Jefferson, Madison | 60 min |
| May 11, 9:58 PM CDT | Special Weather Statement | TAE | Lafayette | 62 min |
| May 12, 6:30 AM CDT | Special Weather Statement | TAE | Walton | 60 min |
| May 12, 6:52 AM CDT | Severe Thunderstorm Warning | TAE | Walton | 38 min |
| May 12, 6:58 AM CDT | Severe Thunderstorm Warning | TAE | Walton | 47 min |
| May 12, 7:00 AM CDT | Special Marine Warning | TAE | 60 min | |
| May 12, 7:45 AM CDT | Severe Thunderstorm Warning | TAE | Walton | 30 min |
| May 12, 8:15 AM CDT | Special Weather Statement | TAE | Holmes, Jackson, Washington | 45 min |
| May 12, 8:48 AM CDT | Special Weather Statement | TAE | Calhoun, Jackson | 42 min |
| May 12, 9:10 AM CDT | Special Marine Warning | TAE | 65 min | |
| May 12, 9:37 AM CDT | Special Weather Statement | TAE | Washington | 38 min |
| May 12, 10:12 AM CDT | Special Marine Warning | TAE | 33 min | |
| May 12, 10:37 AM CDT | Special Weather Statement | TAE | Bay | 53 min |
| May 12, 10:47 AM CDT | Special Marine Warning | TAE | 58 min | |
| May 12, 11:06 AM CDT | Special Weather Statement | TAE | Liberty | 39 min |
| May 12, 11:27 AM CDT | Severe Thunderstorm Warning | TAE | Leon, Liberty, Wakulla | 48 min |
| May 12, 12:06 PM CDT | Special Marine Warning | TAE | 114 min | |
| May 12, 12:07 PM CDT | Severe Thunderstorm Warning | TAE | Franklin, Liberty, Wakulla | 38 min |
| May 12, 12:18 PM CDT | Special Weather Statement | TAE | Jefferson | 42 min |
| May 12, 12:58 PM CDT | Special Weather Statement | TAE | Jefferson, Madison | 47 min |
| May 12, 1:32 PM CDT | Special Weather Statement | TAE | Madison | 28 min |
| May 12, 7:23 AM CDT | Special Weather Statement | TAE | Coffee, Dale | 52 min |
| May 12, 8:08 AM CDT | Special Weather Statement | TAE | Dale, Henry | 52 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2021Severe 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.