Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 43, NWS Tallahassee, FL

March 31, 2021Geneva County, Alabama; Holmes County, Walton County, Washington County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 31, 2021, 5:39 PM CDT for Geneva County, Alabama; Holmes County, Walton County, Washington County, Florida. It was in force for 66 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: Mar 31, 2021, 5:39 PM CDT (22:39 UTC)
Expired: Mar 31, 2021, 6:45 PM CDT
In force: 66 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Geneva County, AL, Holmes 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 22:42 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 31, 3:12 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.7 hours before the alert went out and 178 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 49 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 885 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

594 
WUUS52 KTAE 312239
SVRTAE
ALC061-FLC059-131-133-312345-
/O.NEW.KTAE.SV.W.0043.210331T2239Z-210331T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
539 PM CDT Wed Mar 31 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southern Geneva County in southeastern Alabama...
  Walton County in the Panhandle of Florida...
  Western Holmes County in the Panhandle of Florida...
  Northwestern Washington County in the Panhandle of Florida...

* Until 645 PM CDT.

* At 539 PM CDT, severe thunderstorms were located along a line
  extending from 10 miles south of Samson to near Laurel Hill to near
  Baker, moving east at 45 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, Freeport,
  Paxton, Ponce De Leon, Caryville, Westville, Oakwood Hills, Cluster
  Springs, Whitehead Crossroads, Cerrogordo, Gritney, Rock Hill,
  Glendale, Pleasant Ridge, Knox Hill, Izagora and New Harmony.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3099 8639 3100 8597 3089 8573 3064 8574
      3050 8610 3050 8639
TIME...MOT...LOC 2239Z 284DEG 39KT 3097 8607 3089 8646 3082 8670 

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

72-BUNKER

1 follow-up statement

265 
WWUS52 KTAE 312318
SVSTAE

Severe Weather Statement
National Weather Service Tallahassee FL
618 PM CDT Wed Mar 31 2021

ALC061-312327-
/O.CAN.KTAE.SV.W.0043.000000T0000Z-210331T2345Z/
Geneva AL-
618 PM CDT Wed Mar 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN GENEVA COUNTY IS
CANCELLED...

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

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

LAT...LON 3088 8639 3098 8593 3089 8573 3064 8574
      3050 8610 3050 8639
TIME...MOT...LOC 2317Z 012DEG 20KT 3077 8574 3071 8602 3067 8642 

$$

FLC059-131-133-312345-
/O.CON.KTAE.SV.W.0043.000000T0000Z-210331T2345Z/
Walton FL-Holmes FL-Washington FL-
618 PM CDT Wed Mar 31 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR WALTON...WESTERN HOLMES AND NORTHWESTERN WASHINGTON COUNTIES...

At 617 PM CDT, severe thunderstorms were located along a line
extending from near Bonifay to 6 miles east of De Funiak Springs to 9
miles northwest of Eglin Air Force Base, moving south 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, Union, Liberty, Freeport,
Ponce De Leon, Caryville, Westville, Hinsons Crossroads, Pond Creek,
Oakwood Hills, Cluster Springs, Portland, Whitehead Crossroads,
Alpine Heights, Cerrogordo, Darlington, Gritney, Arrant Settlement
and De Funiak Spring Airport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3088 8639 3098 8593 3089 8573 3064 8574
      3050 8610 3050 8639
TIME...MOT...LOC 2317Z 012DEG 20KT 3077 8574 3071 8602 3067 8642 

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

AH

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 31, 4:07 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale	53 min
Mar 31, 4:37 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Geneva	38 min
Mar 31, 4:42 PM CDT	Tornado Warning	TAE	Coffee, Dale	17 min
Mar 31, 4:52 PM CDT	Severe Thunderstorm Warning	TAE	Coffee, Dale, Henry, Houston	49 min
Mar 31, 5:03 PM CDT	Tornado Warning Tornado observed	TAE	Dale, Henry	9 min
Mar 31, 5:10 PM CDT	Special Weather Statement	TAE	Geneva, Houston	50 min
Mar 31, 5:30 PM CDT	Severe Thunderstorm Warning	TAE	Henry, Houston	45 min
Mar 31, 5:54 PM CDT	Severe Thunderstorm Warning	TAE	Houston	51 min
Mar 31, 2:00 AM CDT	Rip Current Statement	TAE	Gulf	47 hr
Mar 31, 2:00 AM CDT	Small Craft Advisory	TAE		59 hr
Mar 31, 4:07 AM CDT	Gale Warning	TAE		33 hr
Mar 31, 6:03 PM CDT	Special Weather Statement	TAE	Jackson, Washington	57 min
Mar 31, 6:39 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Holmes, Walton, Washington	36 min
Mar 31, 6:43 PM CDT	Special Weather Statement	TAE	Calhoun, Gadsden, Jackson, Jefferson, Leon, Liberty	47 min

Nearby

Severe Thunderstorm Warnings in Florida, 2021 Severe Thunderstorm Warnings in Alabama, 2021 Every 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.