Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 60, NWS Tallahassee, FL

April 10, 20215 counties in Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 10, 2021, 7:21 AM CDT for 5 counties in Florida. It was in force for 84 min. 6 reports 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 10, 2021, 7:21 AM CDT (12:21 UTC)
Expired: Apr 10, 2021, 8:45 AM CDT
In force: 84 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Eglin Afb radar (KEVX), 7 km from the middle of the area, began a volume at 12:21 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 10, 8:30 AM CDT	TSTM WND DMG	Sunny Hills, FL	TREES DOWN IN THE SUNNY HILLS AREA, REPORTED VIA SOCIAL MEDIA.
Apr 10, 8:36 AM CDT	TSTM WND GST 64	Inlet Beach, FL	WEATHERSTEM SENSOR REPORTED A MEASURED GUST OF 64 MPH AT INLET BEACH.
Apr 10, 8:45 AM CDT	TSTM WND DMG	Alford, FL	A COUPLE OF TREES WERE BLOWN DOWN IN SOUTHWEST JACKSON COUNTY.
Apr 10, 8:48 AM CDT	TSTM WND GST 62	Pier Park, FL	NOS STATION AT PANAMA CITY BEACH PIER REPORTED 62 MPH GUST.
Apr 10, 8:50 AM CDT	MARINE TSTM WIND 57	1 Ene Gulf Resort Beach, FL	MESONET STATION XPAN PANAMA CITY BEACH.
Apr 10, 8:52 AM CDT	TSTM WND GST 59	Nw Florida Beaches Intl, FL	ECP AIRPORT MEASURED A SUSTAINED WIND OF 48 MPH AND A GUST TO 59 MPH.

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 10, 2:30 AM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 0.4 hours before the alert went out and 159 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: 13 J/kg
Mixed-layer CIN: -541 J/kg
Mixed-layer LCL: 1046 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 276 m²/s²
0-3 km storm-relative helicity: 231 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

913 
WUUS52 KTAE 101221
SVRTAE
FLC005-059-063-131-133-101345-
/O.NEW.KTAE.SV.W.0060.210410T1221Z-210410T1345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
721 AM CDT Sat Apr 10 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Central Jackson County in the Panhandle of Florida...
  Northwestern Bay County in the Panhandle of Florida...
  Southeastern Walton County in the Panhandle of Florida...
  Holmes County in the Panhandle of Florida...
  Washington County in the Panhandle of Florida...

* Until 845 AM CDT.

* At 721 AM CDT, severe thunderstorms were located along a line
  extending from 7 miles south of Hartford to near Santa Rosa Beach,
  moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Panama City Beach, Vernon, Chipley, Graceville, Bonifay, Marianna,
  Santa Rosa Beach, Bradford, Live Oak, Malone, Freeport, Cottondale,
  Greenwood, Ponce De Leon, Alford, Caryville, Wausau, Esto,
  Westville and Ebro.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 AM CDT for the Panhandle
of Florida.

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 3040 8621 3038 8616 3039 8611 3040 8611
      3043 8612 3044 8616 3047 8613 3046 8617
      3099 8577 3100 8502 3081 8511 3017 8588
      3034 8626
TIME...MOT...LOC 1221Z 260DEG 27KT 3099 8571 3042 8617 

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

42-DVD

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 4:47 AM CDT	Special Weather Statement	TAE	Walton	58 min
Apr 10, 5:30 AM CDT	Special Marine Warning	TAE		3 hr
Apr 10, 5:57 AM CDT	Severe Thunderstorm Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	93 min
Apr 10, 6:18 AM CDT	Tornado Warning	TAE	Walton	27 min
Apr 10, 6:34 AM CDT	Tornado Warning	TAE	Holmes, Walton	26 min
Apr 10, 7:53 AM CDT	Special Marine Warning	TAE		3 hr
Apr 10, 7:59 AM CDT	Severe Thunderstorm Warning	TAE	Bay, Walton, Washington	91 min
Apr 10, 8:31 AM CDT	Tornado Warning	TAE	Bay, Walton	34 min
Apr 10, 8:43 AM CDT	Severe Thunderstorm Warning	TAE	Jackson	62 min
Apr 10, 8:46 AM CDT	Tornado Warning	TAE	Bay	29 min
Apr 10, 8:54 AM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Gulf	77 min
Apr 10, 9:04 AM CDT	Tornado Warning	TAE	Bay, Calhoun, Gulf	26 min
Apr 10, 9:08 AM CDT	Tornado Warning	TAE	Bay, Calhoun	23 min
Apr 10, 9:15 AM CDT	Severe Thunderstorm Warning	TAE	Franklin, Gadsden, Liberty	90 min
Apr 10, 9:20 AM CDT	Special Marine Warning	TAE		3 hr
Apr 10, 9:30 AM CDT	Tornado Warning	TAE	Calhoun, Liberty	30 min
Apr 10, 9:56 AM CDT	Severe Thunderstorm Warning	TAE	Franklin, Gadsden, Leon, Wakulla	82 min
Apr 10, 10:29 AM CDT	Tornado Warning	TAE	Leon	31 min
Apr 10, 10:48 AM CDT	Special Marine Warning	TAE		3 hr
Apr 10, 11:04 AM CDT	Special Weather Statement	TAE	Jefferson	41 min
Apr 10, 11:39 AM CDT	Special Weather Statement	TAE	Jefferson, Madison	66 min
Apr 10, 12:20 PM CDT	Special Weather Statement	TAE	Lafayette, Madison, Taylor	70 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.