Alert archive / Florida / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 222, NWS Tallahassee, FL
NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 19, 2020, 7:53 PM EDT for Gadsden County, Jackson County, Florida; Decatur County, Seminole County, Georgia. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 19, 2020, 7:53 PM EDT (23:53 UTC)
- Expired
- Aug 19, 2020, 8:18 PM EDT
- In force
- 25 min
- Issued by
- NWS Tallahassee, FL
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Gadsden County, FL, Jackson County, FL, Decatur County, GA, Seminole County, GA
The radar
The Tallahassee radar (KTLH), 65 km from the middle of the area, began a volume at 23:52 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 11.9 hours before the alert went out and 288 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
- 691 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1065 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- -24 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Tallahassee, FL wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 19, 6:07 PM EDT, 1 hour 46 minutes earlier.
Area forecast discussion, Aug 19, 6:07 PM EDT, 1 hour 46 minutes before
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Local storm report, Aug 19, 5:45 PM EDT, 2 hours 8 minutes before
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</html>Local storm report, Aug 19, 5:53 PM EDT, 2 hours before
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</html>Special weather statement, Aug 19, 6:00 PM EDT, 1 hour 53 minutes before
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</html>The office that day
Everything else NWS Tallahassee, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 9:49 PM EDT | Special Weather Statement | TAE | Madison | 41 min |
| Aug 18, 11:58 PM EDT | Special Marine Warning | TAE | 62 min | |
| Aug 19, 12:52 AM EDT | Special Weather Statement | TAE | Gadsden | 53 min |
| Aug 19, 12:55 AM EDT | Special Weather Statement | TAE | Jefferson | 50 min |
| Aug 19, 2:18 AM EDT | Special Marine Warning | TAE | 57 min | |
| Aug 19, 6:46 AM EDT | Special Marine Warning | TAE | 44 min | |
| Aug 19, 7:42 AM EDT | Special Marine Warning | TAE | 89 min | |
| Aug 19, 3:17 PM EDT | Special Weather Statement | TAE | Gadsden | 43 min |
| Aug 19, 4:17 PM EDT | Special Weather Statement | TAE | Gadsden | 43 min |
| Aug 19, 4:34 PM EDT | Special Weather Statement | TAE | Holmes | 41 min |
| Aug 19, 4:40 PM EDT | Severe Thunderstorm Warning | TAE | Holmes, Walton | 35 min |
| Aug 19, 4:50 PM EDT | Special Weather Statement | TAE | Leon | 40 min |
| Aug 19, 4:51 PM EDT | Severe Thunderstorm Warning | TAE | Wakulla | 54 min |
| Aug 19, 5:03 PM EDT | Areal Flood Advisory | TAE | Leon | 57 min |
| Aug 19, 6:24 PM EDT | Special Marine Warning | TAE | 51 min | |
| Aug 19, 7:13 PM EDT | Special Weather Statement | TAE | Calhoun | 47 min |
| Aug 19, 7:18 PM EDT | Severe Thunderstorm Warning | TAE | Jackson | 27 min |
| Aug 18, 8:05 PM EDT | Special Weather Statement | TAE | Berrien | 40 min |
| Aug 18, 8:07 PM EDT | Special Weather Statement | TAE | Grady | 53 min |
| Aug 18, 8:13 PM EDT | Special Weather Statement | TAE | Dougherty | 47 min |
| Aug 18, 8:29 PM EDT | Areal Flood Advisory | TAE | Berrien, Cook | 3 hr |
| Aug 18, 8:39 PM EDT | Special Weather Statement | TAE | Berrien, Cook, Lanier, Lowndes | 51 min |
| Aug 18, 9:02 PM EDT | Special Weather Statement | TAE | Dougherty | 43 min |
| Aug 18, 9:05 PM EDT | Special Weather Statement | TAE | Calhoun | 40 min |
| Aug 18, 9:16 PM EDT | Severe Thunderstorm Warning | TAE | Baker, Dougherty, Lee, Mitchell, Worth | 44 min |
| Aug 18, 9:22 PM EDT | Areal Flood Advisory | TAE | Dougherty | 3 hr |
| Aug 18, 9:48 PM EDT | Special Weather Statement | TAE | Calhoun, Clay, Early | 42 min |
| Aug 18, 9:53 PM EDT | Severe Thunderstorm Warning | TAE | Baker, Colquitt, Dougherty, Lee, Mitchell, Terrell and 1 more | 37 min |
| Aug 18, 10:25 PM EDT | Special Weather Statement | TAE | Early | 35 min |
| Aug 18, 10:52 PM EDT | Special Weather Statement | TAE | Baker | 38 min |
| Aug 18, 11:30 PM EDT | Special Weather Statement | TAE | Baker, Miller, Mitchell | 45 min |
| Aug 19, 12:31 AM EDT | Special Weather Statement | TAE | Seminole | 44 min |
| Aug 19, 6:00 PM EDT | Special Weather Statement | TAE | Early | 60 min |
| Aug 19, 6:40 PM EDT | Special Weather Statement | TAE | Early, Miller | 50 min |
| Aug 19, 6:56 PM EDT | Severe Thunderstorm Warning | TAE | Decatur, Early, Miller, Seminole | 49 min |
| Aug 19, 7:44 PM EDT | Special Weather Statement | TAE | Seminole | 46 min |
| Aug 18, 10:13 PM EDT | Special Weather Statement | TAE | Houston | 47 min |
| Aug 18, 11:01 PM EDT | Special Weather Statement | TAE | Henry | 44 min |
| Aug 18, 11:18 PM EDT | Special Weather Statement | TAE | Houston | 27 min |
| Aug 18, 11:53 PM EDT | Special Weather Statement | TAE | Dale | 52 min |
| Aug 19, 3:54 PM EDT | Special Weather Statement | TAE | Geneva | 51 min |
| Aug 19, 5:16 PM EDT | Special Weather Statement | TAE | Henry | 44 min |
Nearby
Severe Thunderstorm Warnings in Florida, 2020Severe Thunderstorm Warnings in Georgia, 2020Every severe thunderstorm warning in 2020
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.