Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 172, NWS Tallahassee, FL

June 29, 2021Holmes County, Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 29, 2021, 1:19 PM CDT for Holmes County, Walton County, Florida. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 29, 2021, 1:19 PM CDT (18:19 UTC)
Expired
Jun 29, 2021, 1:45 PM CDT
In force
26 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

The radar

The Eglin Afb radar (KEVX), 18 km from the middle of the area, began a volume at 18:20 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.3 hours before the alert went out and 174 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 2021-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 990 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 2021-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
990 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
892 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

004 
WUUS52 KTAE 291819
SVRTAE
FLC059-131-291845-
/O.NEW.KTAE.SV.W.0172.210629T1819Z-210629T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
119 PM CDT Tue Jun 29 2021

The National Weather Service in Tallahassee has issued a

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

* Until 145 PM CDT.

* At 119 PM CDT, a severe thunderstorm was located 10 miles south of
  De Funiak Springs, moving northwest at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  De Funiak Springs, Eglin Air Force Base, Freeport, Red Bay,
  Portland, Alpine Heights, De Funiak Spring Airport, Rock Hill,
  Bruce, Eucheeanna, Pleasant Ridge, Center Ridge, New Home, Knox
  Hill and Argyle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3083 8607 3052 8588 3051 8588 3050 8587
      3042 8609 3043 8611 3044 8611 3046 8613
      3046 8615 3047 8613 3048 8614 3047 8615
      3064 8639 3065 8639
TIME...MOT...LOC 1819Z 129DEG 20KT 3059 8608 

HAIL...<.75IN
WIND...60MPH
 
$$

72-BUNKER
1 follow-up statement
218 
WWUS52 KTAE 291836
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
136 PM CDT Tue Jun 29 2021

FLC059-291846-
/O.CAN.KTAE.SV.W.0172.000000T0000Z-210629T1845Z/
Holmes FL-
136 PM CDT Tue Jun 29 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN HOLMES COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3080 8613 3063 8601 3060 8604 3057 8608
      3049 8617 3064 8639 3065 8639
TIME...MOT...LOC 1836Z 129DEG 20KT 3065 8617 

$$

FLC131-291845-
/O.CON.KTAE.SV.W.0172.000000T0000Z-210629T1845Z/
Walton FL-
136 PM CDT Tue Jun 29 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR CENTRAL WALTON COUNTY...

At 136 PM CDT, a severe thunderstorm was located near De Funiak
Springs, moving northwest at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
De Funiak Springs, Eglin Air Force Base, Freeport, Eucheeanna,
Portland, Pleasant Ridge, Alpine Heights, New Home, De Funiak Spring
Airport and Rock Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3080 8613 3063 8601 3060 8604 3057 8608
      3049 8617 3064 8639 3065 8639
TIME...MOT...LOC 1836Z 129DEG 20KT 3065 8617 

HAIL...<.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 7:18 PM CDTSpecial Weather StatementTAEBay27 min
Jun 28, 7:20 PM CDTSpecial Marine WarningTAE26 min
Jun 29, 12:37 PM CDTSpecial Weather StatementTAEWalton53 min
Jun 29, 1:12 PM CDTSpecial Weather StatementTAEDixie, Lafayette63 min
Jun 29, 1:16 PM CDTSpecial Weather StatementTAEWashington44 min
Jun 29, 1:28 PM CDTSevere Thunderstorm WarningTAEDixie32 min
Jun 29, 1:54 PM CDTSpecial Marine WarningTAE96 min
Jun 29, 2:11 PM CDTSevere Thunderstorm WarningTAEDixie, Lafayette, Taylor55 min
Jun 29, 2:32 PM CDTSpecial Weather StatementTAEMadison43 min
Jun 29, 2:47 PM CDTSevere Thunderstorm WarningTAEJefferson, Taylor73 min
Jun 29, 3:15 PM CDTSpecial Weather StatementTAEJefferson45 min
Jun 29, 3:18 PM CDTSevere Thunderstorm WarningTAEJefferson, Madison42 min
Jun 29, 3:25 PM CDTSpecial Marine WarningTAE65 min
Jun 29, 3:49 PM CDTSpecial Weather StatementTAEWakulla41 min
Jun 29, 6:28 PM CDTSpecial Weather StatementTAEGulf47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.