Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 157, NWS Tallahassee, FL

June 19, 20216 counties in Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 19, 2021, 8:58 AM CDT for 6 counties in Florida. It was in force for 49 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 19, 2021, 8:58 AM CDT (13:58 UTC)
Expired
Jun 19, 2021, 9:47 AM CDT
In force
49 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Bay County, FL, Calhoun County, FL, Holmes County, FL, Jackson County, FL, Walton County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 30 km from the middle of the area, began a volume at 14:02 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, 2.0 hours before the alert went out and 136 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 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1367 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 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 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
1367 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
315 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

415 
WUUS52 KTAE 191358
SVRTAE
FLC005-013-059-063-131-133-191515-
/O.NEW.KTAE.SV.W.0157.210619T1358Z-210619T1515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
858 AM CDT Sat Jun 19 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southwestern Jackson County in the Panhandle of Florida...
  Northeastern Bay County in the Panhandle of Florida...
  Northwestern Calhoun County in the Panhandle of Florida...
  East central Walton County in the Panhandle of Florida...
  Central Holmes County in the Panhandle of Florida...
  Washington County in the Panhandle of Florida...

* Until 1015 AM CDT.

* At 858 AM CDT, severe thunderstorms were located along a line
  extending from 14 miles southeast of De Funiak Springs to 6 miles
  southwest of Panama City, moving northeast at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Vernon, Chipley, Bonifay, Bradford, Live Oak, Cottondale, Ponce De
  Leon, Altha, Alford, Caryville, Wausau, Westville, Ebro, Moose
  Pond, Whitehead Crossroads, Cerrogordo, Gritney, Camps Head, Holmes
  Valley and Millers Ferry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Tallahassee.

&&

LAT...LON 3099 8581 3099 8577 3064 8505 3023 8554
      3056 8604
TIME...MOT...LOC 1358Z 209DEG 42KT 3056 8598 3012 8574 

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

42-DVD
2 follow-up statements
971 
WWUS52 KTAE 191432
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
932 AM CDT Sat Jun 19 2021

FLC131-191441-
/O.CAN.KTAE.SV.W.0157.000000T0000Z-210619T1515Z/
Walton FL-
932 AM CDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WALTON COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 3099 8581 3099 8577 3064 8505 3033 8549
      3069 8586 3070 8586 3070 8585 3071 8589
TIME...MOT...LOC 1431Z 214DEG 36KT 3081 8577 3037 8553 

$$

FLC005-013-059-063-133-191515-
/O.CON.KTAE.SV.W.0157.000000T0000Z-210619T1515Z/
Jackson FL-Bay FL-Calhoun FL-Holmes FL-Washington FL-
932 AM CDT Sat Jun 19 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM CDT
FOR SOUTHWESTERN JACKSON...NORTHEASTERN BAY...NORTHWESTERN CALHOUN...
CENTRAL HOLMES AND WASHINGTON COUNTIES IN THE PANHANDLE OF FLORIDA...

At 931 AM CDT, severe thunderstorms were located along a line
extending from near Bonifay to 11 miles northeast of Lynn Haven,
moving northeast at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Vernon, Chipley, Bonifay, Bradford, Cottondale, Alford, Caryville,
Wausau, Westville, Moose Pond, Whitehead Crossroads, Gritney, Camps
Head, Bennett, Porter Lake, Bahoma, Miller Crossroads, Chipley
Municipal Airport, Orange Hill and Kynesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Tallahassee.

&&

LAT...LON 3099 8581 3099 8577 3064 8505 3033 8549
      3069 8586 3070 8586 3070 8585 3071 8589
TIME...MOT...LOC 1431Z 214DEG 36KT 3081 8577 3037 8553 

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

42-DVD
922 
WWUS52 KTAE 191447
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
947 AM CDT Sat Jun 19 2021

FLC005-013-059-063-133-191457-
/O.CAN.KTAE.SV.W.0157.000000T0000Z-210619T1515Z/
Jackson FL-Bay FL-Calhoun FL-Holmes FL-Washington FL-
947 AM CDT Sat Jun 19 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN JACKSON...
NORTHEASTERN BAY...NORTHWESTERN CALHOUN...CENTRAL HOLMES AND
WASHINGTON COUNTIES IN THE PANHANDLE OF FLORIDA IS CANCELLED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM CDT for the Panhandle
of Florida.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Tallahassee.

LAT...LON 3099 8581 3099 8577 3064 8505 3033 8549
      3069 8586 3070 8586 3070 8585 3071 8589
TIME...MOT...LOC 1446Z 209DEG 42KT 3097 8567 3053 8543 

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 18, 7:18 PM CDTSpecial Marine WarningTAE117 min
Jun 18, 8:23 PM CDTSpecial Marine WarningTAE22 min
Jun 18, 8:50 PM CDTSpecial Marine WarningTAE115 min
Jun 18, 9:24 PM CDTSpecial Marine WarningTAE96 min
Jun 18, 10:17 PM CDTTropical Storm WarningTAE17 hr
Jun 19, 4:57 AM CDTWind AdvisoryTAEBay, Holmes, Walton, Washington20 hr
Jun 19, 7:57 AM CDTSpecial Marine WarningTAE78 min
Jun 19, 8:27 AM CDTSevere Thunderstorm WarningTAEBay, Walton, Washington45 min
Jun 19, 9:01 AM CDTTornado WarningTAEWalton14 min
Jun 19, 9:24 AM CDTTornado WarningTAEHolmes, Walton21 min
Jun 19, 9:36 AM CDTTornado WarningTAEWashington8 min
Jun 19, 10:19 AM CDTSpecial Marine WarningTAE33 min
Jun 19, 12:52 PM CDTSevere Thunderstorm WarningTAEBay, Walton, Washington38 min
Jun 19, 1:01 PM CDTSevere Thunderstorm WarningTAEWalton44 min
Jun 19, 1:25 PM CDTSevere Thunderstorm WarningTAEHolmes, Walton, Washington50 min
Jun 19, 2:02 PM CDTSpecial Marine WarningTAE118 min
Jun 19, 2:02 PM CDTSevere Thunderstorm WarningTAEBay43 min
Jun 19, 2:09 PM CDTTornado WarningTAEBay36 min
Jun 19, 2:13 PM CDTSevere Thunderstorm WarningTAEHolmes62 min
Jun 19, 3:57 PM CDTSpecial Marine WarningTAE2 hr
Jun 19, 5:52 PM CDTSpecial Marine WarningTAE113 min
Jun 19, 6:17 PM CDTSevere Thunderstorm WarningTAEHolmes, Walton, Washington43 min
Jun 19, 6:55 PM CDTSevere Thunderstorm WarningTAEHolmes, Jackson50 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.