Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 35, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 18, 2021, 9:11 AM EDT for 7 counties in Florida. It was in force for 64 min. 3 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, 9:11 AM EDT (13:11 UTC)
- Expired
- Mar 18, 2021, 10:15 AM EDT
- In force
- 64 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Franklin County, FL, Gadsden County, FL, Gulf County, FL, Jefferson County, FL, Leon County, FL, Liberty County, FL, Wakulla County, FL
The radar
The Tallahassee radar (KTLH), 56 km from the middle of the area, began a volume at 13:13 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, 9:15 AM EDT | TSTM WND DMG | Fort Braden, FL | TREE DOWN ON POWERLINE ON OSCAR HARVEY ROAD AND STARR HILL ROAD. |
| Mar 18, 9:21 AM EDT | TSTM WND GST 46 | 1 Nnw Apalachicola Airp, FL | KAAF APALACHICOLA REPORTED A GUST OF 46 MPH. |
| Mar 18, 10:15 AM EDT | TSTM WND DMG | 1 Ssw Apalachee Regiona, FL | REPORT A TREE AND POWER LINES DOWN ALONG OLD ST AUGUSTINE RD NEAR WILLIAMS RD. |
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 18, 7:53 AM EDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 1.2 hours before the alert went out and 283 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
- 162 J/kg
- Mixed-layer CIN
- -183 J/kg
- Mixed-layer LCL
- 888 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 220 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
020
WUUS52 KTAE 181311
SVRTAE
FLC037-039-045-065-073-077-129-181415-
/O.NEW.KTAE.SV.W.0035.210318T1311Z-210318T1415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
911 AM EDT Thu Mar 18 2021
The National Weather Service in Tallahassee has issued a
* Severe Thunderstorm Warning for...
Southeastern Gulf County in the Panhandle of Florida...
Wakulla County in Big Bend of Florida...
Gadsden County in Big Bend of Florida...
Southeastern Liberty County in Big Bend of Florida...
Western Jefferson County in Big Bend of Florida...
Leon County in Big Bend of Florida...
Franklin County in Big Bend of Florida...
* Until 1015 AM EDT/915 AM CDT/.
* At 911 AM EDT/811 AM CDT/, severe thunderstorms were located along
a line extending from 9 miles north of Quincy to 18 miles south of
Port St. Joe, moving northeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Carrabelle, Monticello, Eastpoint, Apalachicola, Quincy,
Tallahassee, Havana, St. Marks, Midway, Woodville, Crawfordville,
St George Island, Florida State University, Tallahassee Comm
College, Doak Campbell Stadium, Florida A And M, Wakulla, Franklin,
Sopchoppy and Lake Bradford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 PM EDT/noon CDT/ for Big
Bend of and the Panhandle of Florida...and southwestern Georgia.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2960 8522 3070 8459 3066 8378 3002 8407
2999 8426 2986 8429 2981 8450 2963 8473
2952 8505
TIME...MOT...LOC 1311Z 240DEG 35KT 3070 8455 2956 8520
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
352
WWUS52 KTAE 181353
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
953 AM EDT Thu Mar 18 2021
FLC045-181403-
/O.CAN.KTAE.SV.W.0035.000000T0000Z-210318T1415Z/
Gulf FL-
953 AM EDT Thu Mar 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GULF COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 100 PM EDT for Big Bend of
Florida...and southwestern Georgia.
LAT...LON 2958 8488 2972 8476 2985 8479 3037 8446
3069 8437 3066 8378 3002 8407 2999 8426
2986 8429 2981 8450 2963 8473
TIME...MOT...LOC 1353Z 270DEG 35KT 3073 8412 2959 8477
$$
FLC037-039-065-073-077-129-181415-
/O.CON.KTAE.SV.W.0035.000000T0000Z-210318T1415Z/
Wakulla FL-Gadsden FL-Liberty FL-Jefferson FL-Leon FL-Franklin FL-
953 AM EDT Thu Mar 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EDT
FOR WAKULLA...NORTHEASTERN GADSDEN...SOUTHEASTERN LIBERTY...WESTERN
JEFFERSON...LEON AND NORTHEASTERN FRANKLIN COUNTIES...
At 953 AM EDT, severe thunderstorms were located along a line
extending from 11 miles southwest of Thomasville to 7 miles southeast
of St George Island, moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Carrabelle, Monticello, Tallahassee, St. Marks, Woodville,
Crawfordville, Florida State University, Tallahassee Comm College,
Doak Campbell Stadium, Florida A And M, Wakulla, Sopchoppy, Lake
Bradford, Alma, Cody, Wakulla Springs, St George Island St Pk,
Medart, Tallahassee Mall and Tallahassee Regional A/P.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 100 PM EDT for Big Bend of
Florida...and southwestern Georgia.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 2958 8488 2972 8476 2985 8479 3037 8446
3069 8437 3066 8378 3002 8407 2999 8426
2986 8429 2981 8450 2963 8473
TIME...MOT...LOC 1353Z 270DEG 35KT 3073 8412 2959 8477
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$309
WWUS52 KTAE 181408
SVSTAE
Severe Weather Statement
National Weather Service Tallahassee FL
1008 AM EDT Thu Mar 18 2021
FLC037-039-065-073-077-129-181418-
/O.EXP.KTAE.SV.W.0035.000000T0000Z-210318T1415Z/
Wakulla FL-Gadsden FL-Liberty FL-Jefferson FL-Leon FL-Franklin FL-
1008 AM EDT Thu Mar 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR WAKULLA...NORTHEASTERN
GADSDEN...SOUTHEASTERN LIBERTY...WESTERN JEFFERSON...LEON AND
NORTHEASTERN FRANKLIN COUNTIES WILL EXPIRE AT 1015 AM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
A Tornado Watch remains in effect until 100 PM EDT for Big Bend of
Florida...and southwestern Georgia.
LAT...LON 2958 8488 2972 8476 2985 8479 3037 8446
3069 8437 3066 8378 3002 8407 2999 8426
2986 8429 2981 8450 2963 8473
TIME...MOT...LOC 1408Z 240DEG 35KT 3079 8399 2965 8464
$$The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 18, 4:18 AM EDT | Special Marine Warning | TAE | 3 hr | |
| Mar 18, 4:45 AM EDT | Special Weather Statement | TAE | Holmes, Walton | 75 min |
| Mar 18, 5:29 AM EDT | Severe Thunderstorm Warning | TAE | Holmes, Walton, Washington | 61 min |
| Mar 18, 6:40 AM EDT | Severe Thunderstorm Warning | TAE | Bay, Walton, Washington | 64 min |
| Mar 18, 6:44 AM EDT | Special Marine Warning | TAE | 3 hr | |
| Mar 18, 7:02 AM EDT | Tornado Warning | TAE | Bay, Washington | 28 min |
| Mar 18, 7:05 AM EDT | Tornado Warning | TAE | Bay, Calhoun, Gulf | 40 min |
| Mar 18, 7:19 AM EDT | Severe Thunderstorm Warning | TAE | Bay, Calhoun, Franklin, Gulf, Holmes, Jackson and 2 more | 86 min |
| Mar 18, 7:48 AM EDT | Tornado Warning | TAE | Bay, Gulf | 27 min |
| Mar 18, 8:19 AM EDT | Severe Thunderstorm Warning | TAE | Calhoun, Franklin, Gadsden, Gulf, Leon, Liberty and 1 more | 56 min |
| Mar 18, 8:24 AM EDT | Severe Thunderstorm Warning | TAE | Gadsden, Leon, Liberty | 51 min |
| Mar 18, 9:08 AM EDT | Special Marine Warning | TAE | 2 hr | |
| Mar 18, 10:07 AM EDT | Special Weather Statement | TAE | Jefferson, Wakulla | 38 min |
| Mar 18, 10:52 AM EDT | Special Weather Statement | TAE | Jefferson, Madison | 53 min |
| Mar 18, 11:04 AM EDT | Special Marine Warning | TAE | 116 min | |
| Mar 18, 11:49 AM EDT | Special Weather Statement | TAE | Taylor | 41 min |
| Mar 18, 12:36 PM EDT | Special Weather Statement | TAE | Dixie, Lafayette | 84 min |
| Mar 18, 12:55 PM EDT | Special Marine Warning | TAE | 110 min | |
| Mar 18, 1:21 PM EDT | Tornado Warning | TAE | Dixie, Lafayette, Taylor | 24 min |
| Mar 18, 1:44 PM EDT | Severe Thunderstorm Warning | TAE | Dixie, Lafayette | 31 min |
| Mar 18, 2:06 PM EDT | Special Weather Statement | TAE | Dixie | 39 min |
Nearby
Severe Thunderstorm Warnings in Florida, 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.