Alert archive / Florida / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 33, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 18, 2021, 7:19 AM CDT for 7 counties in Florida. It was in force for 56 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, 7:19 AM CDT (12:19 UTC)
- Expired
- Mar 18, 2021, 8:15 AM CDT
- In force
- 56 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Calhoun County, FL, Franklin County, FL, Gadsden County, FL, Gulf County, FL, Leon County, FL, Liberty County, FL, Wakulla County, FL
The radar
The Tallahassee radar (KTLH), 78 km from the middle of the area, began a volume at 12:22 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, 7:40 AM CDT | TORNADO | 5 W Telogia, FL | TDS OBSERVED ON RADAR IN FORESTED AREA WITH TREE DAMAGE. NO STRUCTURAL DAMAGE REPORTED. |
| Mar 18, 8:15 AM CDT | TSTM WND DMG | Fort Braden, FL | TREE DOWN ON POWERLINE ON OSCAR HARVEY ROAD AND STARR HILL ROAD. |
| Mar 18, 8:21 AM CDT | TSTM WND GST 46 | 1 Nnw Apalachicola Airp, FL | KAAF APALACHICOLA REPORTED A GUST OF 46 MPH. |
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 |
| Mar 18, 6:53 AM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Jacksonville, FL (KJAX), launched 12:00Z, 0.3 hours before the alert went out and 318 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.
005
WUUS52 KTAE 181219
SVRTAE
FLC013-037-039-045-073-077-129-181315-
/O.NEW.KTAE.SV.W.0033.210318T1219Z-210318T1315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
819 AM EDT Thu Mar 18 2021
The National Weather Service in Tallahassee has issued a
* Severe Thunderstorm Warning for...
Gulf County in the Panhandle of Florida...
Eastern Calhoun County in the Panhandle of Florida...
Western Wakulla County in Big Bend of Florida...
Gadsden County in Big Bend of Florida...
Liberty County in Big Bend of Florida...
Western Leon County in Big Bend of Florida...
Franklin County in Big Bend of Florida...
* Until 915 AM EDT/815 AM CDT/.
* At 818 AM EDT/718 AM CDT/, severe thunderstorms were located along
a line extending from 7 miles southwest of Donalsonville to near
Chattahoochee to 14 miles northeast of Stonemill Creek to 19 miles
south of Port St. Joe, moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Carrabelle, Eastpoint, Apalachicola, Quincy, Blountstown, Havana,
Midway, St George Island, Port St. Joe, Tallahassee, Tallahassee
Comm College, Greensboro, Wewahitchka, Orange, Franklin, Gretna,
Bristol, Sopchoppy, Lake Bradford and Rock Bluff.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 900 AM EDT/800 AM CDT/ for
the Panhandle of Florida. A Tornado Watch also 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 8524 2960 8540 2973 8548 3016 8515
3056 8510 3069 8429 3061 8426 2978 8454
2963 8473 2952 8505
TIME...MOT...LOC 1218Z 239DEG 41KT 3100 8499 3072 8491 3023 8496 2955
8540
TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
$$The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 4:29 AM CDT | Severe Thunderstorm Warning | TAE | Holmes, Walton, Washington | 61 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, 7:24 AM CDT | Severe Thunderstorm Warning | TAE | Gadsden, Leon, Liberty | 51 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, 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.