Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 74, NWS Tallahassee, FL

April 24, 2021Jackson County, Washington County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 24, 2021, 9:52 AM CDT for Jackson County, Washington County, Florida. It was in force for 53 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, 9:52 AM CDT (14:52 UTC)
Expired: Apr 24, 2021, 10:45 AM CDT
In force: 53 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Jackson County, FL, Washington County, FL

The radar

The Eglin Afb radar (KEVX), 69 km from the middle of the area, began a volume at 14:56 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

Time	Report	Where	Remark
Apr 24, 10:15 AM CDT	HAIL 1.75	Cypress, FL	GOLF BALL SIZE HAIL IN CYPRESS IN JACKSON CO.

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.

Issued	Product	Office	Lasted
Apr 24, 5:22 AM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 2.9 hours before the alert went out and 92 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: 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.

209 
WUUS52 KTAE 241452
SVRTAE
FLC063-133-241545-
/O.NEW.KTAE.SV.W.0074.210424T1452Z-210424T1545Z/

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

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southeastern Jackson County in the Panhandle of Florida...
  East central Washington County in the Panhandle of Florida...

* Until 1045 AM CDT.

* At 952 AM CDT, a severe thunderstorm was located 12 miles southeast
  of Chipley, moving northeast at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Marianna, Grand Ridge, Greenwood, Alford, Kynesville, Ridgetop,
  Blue Spring, Union City, Steele City, Gilberts Mill, Sink Creek,
  Star, Round Lake, Simsville, Cypress, Alliance, Chipola Terrace,
  Compass Lake and Marianna Municipal A/P.

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 3091 8512 3063 8494 3061 8508 3061 8517
      3059 8517 3057 8531 3057 8548 3064 8552
TIME...MOT...LOC 1452Z 238DEG 38KT 3062 8543 

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

55-SCHOLL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 24, 12:45 AM CDT	Flash Flood Watch	TAE	Holmes, Jackson, Walton, Washington	22 hr
Apr 24, 1:00 AM CDT	Wind Advisory	TAE	Bay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more	18 hr
Apr 24, 6:29 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Walton	59 min
Apr 24, 8:14 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Walton	46 min
Apr 24, 8:56 AM CDT	Special Weather Statement	TAE	Holmes	49 min
Apr 24, 9:01 AM CDT	Areal Flood Advisory	TAE	Holmes, Jackson, Walton	119 min
Apr 24, 9:39 AM CDT	Flash Flood Warning	TAE	Holmes, Jackson, Walton	3 hr
Apr 24, 9:48 AM CDT	Special Weather Statement	TAE	Jackson	42 min
Apr 24, 9:57 AM CDT	Tornado Warning	TAE	Jackson, Washington	14 min
Apr 24, 10:20 AM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Gadsden, Jackson	40 min
Apr 24, 10:54 AM CDT	Severe Thunderstorm Warning	TAE	Holmes, Walton, Washington	51 min
Apr 24, 10:57 AM CDT	Severe Thunderstorm Warning	TAE	Gadsden	48 min
Apr 24, 11:09 AM CDT	Flash Flood Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	3 hr
Apr 24, 11:25 AM CDT	Special Weather Statement	TAE	Leon	50 min
Apr 24, 11:30 AM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Jefferson, Leon	30 min
Apr 24, 11:41 AM CDT	River Flood Warning	TAE	Walton	41 hr
Apr 24, 11:41 AM CDT	Special Weather Statement	TAE	Holmes	64 min
Apr 24, 11:45 AM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon	30 min
Apr 24, 11:53 AM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Madison	52 min
Apr 24, 12:03 PM CDT	Severe Thunderstorm Warning	TAE	Gadsden, Leon	27 min
Apr 24, 12:17 PM CDT	Flash Flood Warning Considerable damage threat	TAE	Jackson, Washington	3 hr
Apr 24, 12:34 PM CDT	Flash Flood Warning Considerable damage threat	TAE	Holmes, Jackson, Walton, Washington	3 hr
Apr 24, 12:34 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Madison	41 min
Apr 24, 12:39 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Leon, Madison	51 min
Apr 24, 1:09 PM CDT	Tornado Warning	TAE	Jefferson, Madison	36 min
Apr 24, 1:38 PM CDT	Tornado Warning	TAE	Madison	19 min

Nearby

Severe Thunderstorm Warnings in Florida, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.