Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 62, NWS Tallahassee, FL

April 10, 2021Jackson County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 10, 2021, 8:43 AM CDT for Jackson County, Florida. It was in force for 62 min. 2 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, 8:43 AM CDT (13:43 UTC)
Expired: Apr 10, 2021, 9:45 AM CDT
In force: 62 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

County Jackson County, FL

The radar

The Ft Rucker radar (KEOX), 79 km from the middle of the area, began a volume at 13:47 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, 8:45 AM CDT	TSTM WND DMG	Alford, FL	A COUPLE OF TREES WERE BLOWN DOWN IN SOUTHWEST JACKSON COUNTY.
Apr 10, 9:36 AM CDT	TSTM WND DMG	Grand Ridge, FL	TREE DOWN IN THE SOUTHEAST PART OF JACKSON COUNTY.

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, 1.7 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: 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.

540 
WUUS52 KTAE 101343
SVRTAE
FLC063-101445-
/O.NEW.KTAE.SV.W.0062.210410T1343Z-210410T1445Z/

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

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Jackson County in the Panhandle of Florida...

* Until 945 AM CDT.

* At 843 AM CDT, severe thunderstorms were located along a line
  extending from 6 miles southwest of Cottonwood to 10 miles
  southeast of Chipley, moving northeast at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Marianna, Chattahoochee, Malone, Sneads, Cottondale, Grand Ridge,
  Greenwood, Alford, Campbellton, Bascom, Blue Spring, Union City,
  Lovedale, Dellwood, Star, Hornsville, Jacobs, Alliance, Compass
  Lake and Ellaville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 AM CDT for southeastern
Alabama...and 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 3100 8543 3100 8500 3097 8500 3097 8499
      3093 8498 3088 8493 3082 8494 3075 8491
      3071 8486 3061 8493 3061 8517 3057 8518
      3057 8543 3078 8543 3079 8548
TIME...MOT...LOC 1343Z 238DEG 33KT 3099 8538 3064 8547 

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, 7:21 AM CDT	Severe Thunderstorm Warning	TAE	Bay, Holmes, Jackson, Walton, Washington	84 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, 8:46 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.