Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 76, NWS Tallahassee, FL

April 24, 2021Holmes County, Walton County, Washington County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 24, 2021, 10:54 AM CDT for Holmes County, Walton County, Washington County, Florida. It was in force for 51 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, 10:54 AM CDT (15:54 UTC)
Expired
Apr 24, 2021, 11:45 AM CDT
In force
51 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Holmes County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 29 km from the middle of the area, began a volume at 15:57 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, 11:14 AM CDTTSTM WND DMGDe Funiak Springs, FLTREES KNOCKED DOWN AFTER STORM PASSAGE.

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, 3.9 hours before the alert went out and 179 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.

395 
WUUS52 KTAE 241554
SVRTAE
FLC059-131-133-241645-
/O.NEW.KTAE.SV.W.0076.210424T1554Z-210424T1645Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
1054 AM CDT Sat Apr 24 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Central Walton County in the Panhandle of Florida...
  Western Holmes County in the Panhandle of Florida...
  Central Washington County in the Panhandle of Florida...

* Until 1145 AM CDT.

* At 1054 AM CDT, a severe thunderstorm was located 10 miles east of
  Crestview, moving east at 60 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Vernon, De Funiak Springs, Eglin Air Force Base, Union, Liberty,
  Live Oak, Ponce De Leon, Caryville, Westville, Hinsons Crossroads,
  Pond Creek, Oakwood Hills, Cluster Springs, Whitehead Crossroads,
  Alpine Heights, Cerrogordo, Gritney, Arrant Settlement, De Funiak
  Spring Airport and Rock Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 200 PM CDT for the Panhandle
of Florida.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3090 8639 3094 8573 3053 8569 3057 8639
TIME...MOT...LOC 1554Z 265DEG 53KT 3073 8640 

HAIL...0.75IN
WIND...60MPH
 
$$

72-BUNKER

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, 10:20 AM CDTSevere Thunderstorm WarningTAECalhoun, Gadsden, Jackson40 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

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.