Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 27, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 18, 2021, 4:29 AM CDT for Geneva County, Alabama; Holmes County, Walton County, Washington County, Florida. It was in force for 61 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Mar 18, 2021, 4:29 AM CDT (09:29 UTC)
- Expired
- Mar 18, 2021, 5:30 AM CDT
- In force
- 61 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Geneva County, AL, Holmes County, FL, Walton County, FL, Washington County, FL
The radar
The Eglin Afb radar (KEVX), 43 km from the middle of the area, began a volume at 09:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 18, 4:38 AM CDT | TSTM WND GST 39 | Mossy Head, FL | |
| Mar 18, 4:59 AM CDT | TSTM WND GST 44 | Holmes County Airport, FL | MEASURED AT K1J0 AWOS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 17, 11:02 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 9.5 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1019 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
080
WUUS52 KTAE 180929
SVRTAE
ALC061-FLC059-131-133-181030-
/O.NEW.KTAE.SV.W.0027.210318T0929Z-210318T1030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
429 AM CDT Thu Mar 18 2021
The National Weather Service in Tallahassee has issued a
* Severe Thunderstorm Warning for...
Geneva County in southeastern Alabama...
Northern Walton County in the Panhandle of Florida...
Holmes County in the Panhandle of Florida...
North central Washington County in the Panhandle of Florida...
* Until 530 AM CDT.
* At 429 AM CDT, severe thunderstorms were located along a line
extending from near Samson to near Eglin Air Force Base, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
De Funiak Springs, Bonifay, Geneva, Hartford, Slocomb, Samson,
Eglin Air Force Base, Union, Liberty, Malvern, Paxton, Ponce De
Leon, Caryville, Esto, Westville, Coffee Springs, Noma, Black,
Oakwood Hills and Cluster Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 600 AM CDT for southeastern
Alabama...and the Panhandle of Florida.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Tallahassee.
&&
LAT...LON 3071 8639 3099 8634 3100 8619 3119 8619
3119 8613 3118 8612 3119 8611 3120 8549
3100 8549 3097 8553 3094 8553 3089 8558
3083 8560 3083 8558 3069 8565 3060 8639
TIME...MOT...LOC 0929Z 246DEG 38KT 3115 8604 3068 8630
HAIL...<.75IN
WIND...60MPH
$$
42-DVD1 follow-up statement
191
WWUS52 KTAE 181011
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
511 AM CDT Thu Mar 18 2021
ALC061-FLC059-131-133-181030-
/O.CON.KTAE.SV.W.0027.000000T0000Z-210318T1030Z/
Geneva AL-Walton FL-Holmes FL-Washington FL-
511 AM CDT Thu Mar 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 AM CDT
FOR GENEVA...NORTHEASTERN WALTON...HOLMES AND NORTH CENTRAL
WASHINGTON COUNTIES...
At 510 AM CDT, severe thunderstorms were located along a line
extending from Newton to 11 miles northwest of Bonifay, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Bonifay, Geneva, De Funiak Springs, Hartford, Slocomb, Samson, Union,
Malvern, Ponce De Leon, Caryville, Esto, Westville, Coffee Springs,
Noma, Black, Kellys Crossroads, Whitehead Crossroads, Cerrogordo,
Gritney and Logan Field Municipal A/P.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 600 AM CDT for southeastern
Alabama...and the Panhandle of Florida.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Tallahassee.
&&
LAT...LON 3074 8611 3093 8615 3100 8619 3107 8614
3113 8606 3115 8602 3120 8549 3100 8549
3097 8553 3094 8553 3089 8558 3083 8560
3083 8558 3069 8565 3064 8610
TIME...MOT...LOC 1010Z 246DEG 38KT 3132 8559 3085 8585
HAIL...<.75IN
WIND...60MPH
$$
42-DVDThe office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 3:34 AM CDT | Special Weather Statement | TAE | Coffee, Dale, Geneva, Henry | 86 min |
| Mar 18, 5:04 AM CDT | Severe Thunderstorm Warning | TAE | Coffee, Dale, Henry, Houston | 56 min |
| Mar 18, 5:26 AM CDT | Tornado Warning | TAE | Dale, Henry, Houston | 49 min |
| Mar 18, 6:01 AM CDT | Severe Thunderstorm Warning | TAE | Henry, Houston | 59 min |
| Mar 18, 6:15 AM CDT | Tornado Warning | TAE | Henry | 30 min |
| Mar 18, 7:24 AM CDT | Severe Thunderstorm Warning | TAE | Houston | 51 min |
| Mar 18, 3:18 AM CDT | Special Marine Warning | TAE | 3 hr | |
| Mar 18, 3:45 AM CDT | Special Weather Statement | TAE | Holmes, Walton | 75 min |
| Mar 18, 5:40 AM CDT | Severe Thunderstorm Warning | TAE | Bay, Walton, Washington | 64 min |
| Mar 18, 5:44 AM CDT | Special Marine Warning | TAE | 3 hr | |
| Mar 18, 6:02 AM CDT | Tornado Warning | TAE | Bay, Washington | 28 min |
| Mar 18, 6:05 AM CDT | Tornado Warning | TAE | Bay, Calhoun, Gulf | 40 min |
| Mar 18, 6:19 AM CDT | Severe Thunderstorm Warning | TAE | Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more | 86 min |
| Mar 18, 6:48 AM CDT | Tornado Warning | TAE | Bay, Gulf | 27 min |
| Mar 18, 7:19 AM CDT | Severe Thunderstorm Warning | TAE | Calhoun, Franklin, Gadsden, Gulf, Leon, Liberty and 1 more | 56 min |
| Mar 18, 8:08 AM CDT | Special Marine Warning | TAE | 2 hr | |
| Mar 18, 8:11 AM CDT | Severe Thunderstorm Warning | TAE | Franklin, Gadsden, Gulf, Jefferson, Leon, Liberty and 1 more | 64 min |
| Mar 18, 9:07 AM CDT | Special Weather Statement | TAE | Jefferson, Wakulla | 38 min |
| Mar 18, 9:52 AM CDT | Special Weather Statement | TAE | Jefferson, Madison | 53 min |
| Mar 18, 10:04 AM CDT | Special Marine Warning | TAE | 116 min | |
| Mar 18, 10:49 AM CDT | Special Weather Statement | TAE | Taylor | 41 min |
| Mar 18, 11:36 AM CDT | Special Weather Statement | TAE | Dixie, Lafayette | 84 min |
| Mar 18, 11:55 AM CDT | Special Marine Warning | TAE | 110 min | |
| Mar 18, 12:21 PM CDT | Tornado Warning | TAE | Dixie, Lafayette, Taylor | 24 min |
| Mar 18, 12:44 PM CDT | Severe Thunderstorm Warning | TAE | Dixie, Lafayette | 31 min |
| Mar 18, 1:06 PM CDT | Special Weather Statement | TAE | Dixie | 39 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.