Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 75, NWS Tallahassee, FL

April 24, 2021Calhoun County, Gadsden County, Jackson County, Florida; Decatur County, Seminole County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 24, 2021, 10:20 AM CDT for Calhoun County, Gadsden County, Jackson County, Florida; Decatur County, Seminole County, Georgia. It was in force for 40 min. 1 report 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
Apr 24, 2021, 10:20 AM CDT (15:20 UTC)
Expired
Apr 24, 2021, 11:00 AM CDT
In force
40 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Calhoun County, FL, Gadsden County, FL, Jackson County, FL, Decatur County, GA, Seminole County, GA

The radar

The Tallahassee radar (KTLH), 60 km from the middle of the area, began a volume at 15:21 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

TimeReportWhereRemark
Apr 24, 10:42 AM CDTHAIL 0.52 S Sneads, FLREPORT FROM MPING: HALF-INCH (0.50 IN.).

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.

IssuedProductOfficeLasted
Apr 24, 5:22 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 3.3 hours before the alert went out and 62 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.

Skew-T log-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 175 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 447 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
175 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
544 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
447 m²/s²
0-3 km storm-relative helicity
570 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

615 
WUUS52 KTAE 241520
SVRTAE
FLC013-039-063-GAC087-253-241600-
/O.NEW.KTAE.SV.W.0075.210424T1520Z-210424T1600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
1120 AM EDT Sat Apr 24 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southeastern Jackson County in the Panhandle of Florida...
  Northeastern Calhoun County in the Panhandle of Florida...
  Northwestern Gadsden County in Big Bend of Florida...
  Southwestern Decatur County in southwestern Georgia...
  Southeastern Seminole County in southwestern Georgia...

* Until noon EDT/1100 AM CDT/.

* At 1120 AM EDT/1020 AM CDT/, Doppler radar indicated a severe
  thunderstorm capable of producing quarter size hail and damaging
  winds in excess of 60 mph. This storm was located 12 miles
  southeast of Marianna, and moving east at 45 mph.

* Locations impacted include...
  Chattahoochee, Sneads, Grand Ridge, Altha, Brinson, Seminole State
  Park, Desser, Reynoldsville, Ocheesee, Mount Pleasant, Hardin
  Heights, Rosedale, Recovery, Faceville, Drakes Still, Jinks, Star,
  Cypress, Alliance and Fairchild.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Severe thunderstorms produce damaging winds, destructive hail, deadly
lightning and very heavy rain. For your protection, move to an
interior room on the lowest floor of your home or business. Heavy
rains flood roads quickly so do not drive into areas where water
covers the road.

&&

A Tornado Watch remains in effect until 300 PM EDT/200 PM CDT/ for
the Panhandle of Florida...and southwestern Georgia.

LAT...LON 3067 8457 3060 8490 3061 8493 3060 8494
      3056 8512 3073 8519 3098 8471
TIME...MOT...LOC 1520Z 251DEG 38KT 3068 8507 

$$

55-SCHOLL

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 24, 12:45 AM CDTFlash Flood WatchTAEHolmes, Jackson, Walton, Washington22 hr
Apr 24, 1:00 AM CDTWind AdvisoryTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more18 hr
Apr 24, 6:29 AM CDTSevere Thunderstorm WarningTAEHolmes, Walton59 min
Apr 24, 8:14 AM CDTSevere Thunderstorm WarningTAEHolmes, Walton46 min
Apr 24, 8:56 AM CDTSpecial Weather StatementTAEHolmes49 min
Apr 24, 9:01 AM CDTAreal Flood AdvisoryTAEHolmes, Jackson, Walton119 min
Apr 24, 9:39 AM CDTFlash Flood WarningTAEHolmes, Jackson, Walton3 hr
Apr 24, 9:48 AM CDTSpecial Weather StatementTAEJackson42 min
Apr 24, 9:52 AM CDTSevere Thunderstorm WarningTAEJackson, Washington53 min
Apr 24, 9:57 AM CDTTornado WarningTAEJackson, Washington14 min
Apr 24, 10:54 AM CDTSevere Thunderstorm WarningTAEHolmes, Walton, Washington51 min
Apr 24, 10:57 AM CDTSevere Thunderstorm WarningTAEGadsden48 min
Apr 24, 11:09 AM CDTFlash Flood WarningTAEBay, Holmes, Jackson, Walton, Washington3 hr
Apr 24, 11:25 AM CDTSpecial Weather StatementTAELeon50 min
Apr 24, 11:30 AM CDTSevere Thunderstorm WarningTAEGadsden, Jefferson, Leon30 min
Apr 24, 11:41 AM CDTRiver Flood WarningTAEWalton41 hr
Apr 24, 11:41 AM CDTSpecial Weather StatementTAEHolmes64 min
Apr 24, 11:45 AM CDTSevere Thunderstorm WarningTAEGadsden, Leon30 min
Apr 24, 11:53 AM CDTSevere Thunderstorm WarningTAEJefferson, Leon, Madison52 min
Apr 24, 12:03 PM CDTSevere Thunderstorm WarningTAEGadsden, Leon27 min
Apr 24, 12:17 PM CDTFlash Flood Warning Considerable damage threatTAEJackson, Washington3 hr
Apr 24, 12:34 PM CDTFlash Flood Warning Considerable damage threatTAEHolmes, Jackson, Walton, Washington3 hr
Apr 24, 12:34 PM CDTSevere Thunderstorm WarningTAEJefferson, Madison41 min
Apr 24, 12:39 PM CDTSevere Thunderstorm WarningTAEJefferson, Leon, Madison51 min
Apr 24, 1:09 PM CDTTornado WarningTAEJefferson, Madison36 min
Apr 24, 1:38 PM CDTTornado WarningTAEMadison19 min
Apr 24, 7:40 AM CDTSevere Thunderstorm WarningTAEBaker, Calhoun, Clay, Dougherty, Early, Miller and 3 more95 min
Apr 24, 7:48 AM CDTTornado WarningTAEEarly, Miller27 min
Apr 24, 7:52 AM CDTTornado WarningTAECalhoun, Clay, Early53 min
Apr 24, 8:10 AM CDTTornado WarningTAEBaker, Early, Miller35 min
Apr 24, 8:28 AM CDTSevere Thunderstorm WarningTAEBaker, Colquitt, Dougherty, Lee, Mitchell, Terrell and 2 more62 min
Apr 24, 8:33 AM CDTTornado WarningTAEBaker, Dougherty, Miller, Mitchell27 min
Apr 24, 9:10 AM CDTSevere Thunderstorm WarningTAEBen Hill, Berrien, Colquitt, Cook, Irwin, Lanier and 3 more65 min
Apr 24, 10:58 AM CDTAreal Flood AdvisoryTAEBaker, Colquitt, Decatur, Early, Grady, Miller and 3 more4 hr
Apr 24, 12:49 PM CDTFlash Flood WarningTAEDecatur, Seminole3 hr
Apr 24, 1:08 PM CDTSevere Thunderstorm WarningTAELowndes37 min
Apr 24, 2:39 PM CDTTornado WarningTAEEarly19 min
Apr 24, 2:49 PM CDTSevere Thunderstorm WarningTAEBaker, Calhoun, Clay, Early, Randolph56 min
Apr 24, 3:34 PM CDTSevere Thunderstorm WarningTAEBaker, Calhoun, Dougherty, Early, Miller, Mitchell41 min
Apr 24, 3:54 PM CDTAreal Flood AdvisoryTAETift111 min
Apr 24, 3:58 PM CDTSevere Thunderstorm WarningTAEBaker, Colquitt, Dougherty, Lee, Miller, Mitchell and 3 more47 min
Apr 24, 4:31 PM CDTSevere Thunderstorm WarningTAEBen Hill, Berrien, Colquitt, Cook, Irwin, Tift and 2 more44 min
Apr 24, 4:44 PM CDTSevere Thunderstorm WarningTAEColquitt, Dougherty, Mitchell, Worth31 min
Apr 24, 5:10 PM CDTSevere Thunderstorm WarningTAEBerrien, Colquitt, Cook, Irwin, Tift, Worth80 min
Apr 24, 5:12 PM CDTSpecial Weather StatementTAECalhoun, Clay, Randolph63 min
Apr 24, 5:37 PM CDTTornado WarningTAEBaker, Calhoun, Clay, Early, Terrell38 min
Apr 24, 5:41 PM CDTAreal Flood AdvisoryTAETift3 hr
Apr 24, 6:02 PM CDTTornado WarningTAECalhoun, Dougherty, Lee, Terrell12 min
Apr 24, 6:05 PM CDTSevere Thunderstorm WarningTAEBaker, Calhoun, Clay, Early, Randolph, Terrell40 min
Apr 24, 6:38 PM CDTSevere Thunderstorm WarningTAECalhoun, Dougherty, Lee, Terrell, Worth52 min
Apr 24, 6:41 PM CDTSevere Thunderstorm WarningTAEBen Hill, Berrien, Irwin, Tift19 min
Apr 24, 6:47 PM CDTSevere Thunderstorm WarningTAECalhoun, Clay, Quitman, Randolph43 min
Apr 24, 6:57 PM CDTSevere Thunderstorm WarningTAEBen Hill, Berrien, Irwin, Tift33 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021Severe Thunderstorm Warnings in Georgia, 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.