Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 127, NWS Tallahassee, FL

May 10, 2021Holmes County, Walton County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at May 10, 2021, 6:43 AM CDT for Holmes County, Walton County, Florida. It was in force for 47 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
May 10, 2021, 6:43 AM CDT (11:43 UTC)
Expired
May 10, 2021, 7:30 AM CDT
In force
47 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Holmes County, FL, Walton County, FL

The radar

The Eglin Afb radar (KEVX), 45 km from the middle of the area, began a volume at 11:45 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 00:00Z, 11.7 hours before the alert went out and 192 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 00:00Z on 2021-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 316 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 00:00Z on 2021-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
316 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1114 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

276 
WUUS52 KTAE 101143
SVRTAE
FLC059-131-101230-
/O.NEW.KTAE.SV.W.0127.210510T1143Z-210510T1230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
643 AM CDT Mon May 10 2021

The National Weather Service in Tallahassee has issued a

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

* Until 730 AM CDT.

* At 643 AM CDT, a severe thunderstorm was located near Florala,
  moving east at 40 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, Union, Liberty, Paxton,
  Pond Creek, Oakwood Hills, Cluster Springs, Gaskin, Alpine Heights,
  Darlington, Arrant Settlement, De Funiak Spring Airport, Glendale,
  Pleasant Ridge, Center Ridge, New Harmony, Piney Grove, Argyle and
  Mossy Head.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3099 8639 3099 8591 3064 8606 3077 8639
TIME...MOT...LOC 1143Z 287DEG 36KT 3094 8635 

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

25-CAMP
2 follow-up statements
963 
WWUS52 KTAE 101208
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
708 AM CDT Mon May 10 2021

FLC059-131-101230-
/O.CON.KTAE.SV.W.0127.000000T0000Z-210510T1230Z/
Walton FL-Holmes FL-
708 AM CDT Mon May 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 AM CDT
FOR NORTHWESTERN WALTON AND NORTHWESTERN HOLMES COUNTIES...

At 707 AM CDT, a severe thunderstorm was located 10 miles north of De
Funiak Springs, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
De Funiak Springs, Union, Liberty, Gordon, Oakwood Hills, Cluster
Springs, Fox Hill, Leonia, Gaskin, Sand Hill, Alpine Heights,
Darlington, Arrant Settlement, De Funiak Spring Airport, Sweetgum
Head, Royals Crossroads, Glendale, Pleasant Hill, Center Ridge and
New Harmony.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3099 8623 3099 8591 3064 8606 3078 8634
TIME...MOT...LOC 1207Z 287DEG 36KT 3088 8614 

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

25-CAMP
126 
WWUS52 KTAE 101227
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
727 AM CDT Mon May 10 2021

FLC059-131-101237-
/O.EXP.KTAE.SV.W.0127.000000T0000Z-210510T1230Z/
Walton FL-Holmes FL-
727 AM CDT Mon May 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WALTON AND
NORTHWESTERN HOLMES COUNTIES WILL EXPIRE AT 730 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3099 8623 3099 8591 3064 8606 3078 8634
TIME...MOT...LOC 1227Z 287DEG 36KT 3083 8595 

$$

25-CAMP

The office that day

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

IssuedProductOfficeCountiesLasted
May 10, 6:25 AM CDTSpecial Weather StatementTAEHolmes, Walton65 min
May 10, 7:24 AM CDTSpecial Weather StatementTAEHolmes, Walton, Washington66 min
May 10, 8:08 AM CDTSpecial Weather StatementTAEJackson52 min
May 10, 12:40 PM CDTSpecial Marine WarningTAE95 min
May 10, 12:57 PM CDTSpecial Marine WarningTAE63 min
May 10, 1:30 PM CDTSpecial Marine WarningTAE77 min
May 10, 1:36 PM CDTSpecial Marine WarningTAE54 min
May 10, 1:53 PM CDTSpecial Marine WarningTAE37 min
May 10, 2:22 PM CDTSpecial Weather StatementTAEGulf53 min
May 10, 2:46 PM CDTSpecial Marine WarningTAE59 min
May 10, 2:50 PM CDTSpecial Weather StatementTAEGulf25 min
May 10, 3:10 PM CDTSpecial Weather StatementTAEFranklin50 min
May 10, 3:12 PM CDTSpecial Marine WarningTAE33 min
May 10, 3:38 PM CDTSpecial Marine WarningTAE67 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.