Alert archive / Florida / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 147, NWS Tallahassee, FL

June 15, 20214 counties in Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 15, 2021, 1:20 PM CDT for 4 counties in Florida. It was in force for 25 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: Jun 15, 2021, 1:20 PM CDT (18:20 UTC)
Expired: Jun 15, 2021, 1:45 PM CDT
In force: 25 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Calhoun County, FL, Franklin County, FL, Gulf County, FL, Liberty County, FL

The radar

The Tallahassee radar (KTLH), 76 km from the middle of the area, began a volume at 18:21 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.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.3 hours before the alert went out and 79 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: 2073 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 942 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

113 
WUUS52 KTAE 151820 RRA
SVRTAE
FLC013-037-045-077-151845-
/O.NEW.KTAE.SV.W.0147.210615T1820Z-210615T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
220 PM EDT Tue Jun 15 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Northeastern Gulf County in the Panhandle of Florida...
  South central Calhoun County in the Panhandle of Florida...
  Southwestern Liberty County in Big Bend of Florida...
  North central Franklin County in Big Bend of Florida...

* Until 245 PM EDT/145 PM CDT/.

* At 220 PM EDT/120 PM CDT/, severe thunderstorms were located along
  a line extending from near Stonemill Creek to 9 miles northeast of
  Wewahitchka to 16 miles south of Blountstown, moving southeast at
  15 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Stonemill Creek, Orange, Wewahitchka, Honeyville, Chipola Cutoff,
  Jensen Place, Central City, Red Hill, Owens Bridge, Kern, Wilma,
  Lewis, Sumatra, Willis Landing, Nixon Garden, Twin Pole and
  Dalkeith.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2995 8516 3002 8484 3004 8472 3028 8495
      3024 8513 3020 8535
TIME...MOT...LOC 1820Z 308DEG 11KT 3017 8526 3017 8505 3021 8497 

HAIL...0.75IN
WIND...60MPH
 
$$

33-LF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 2:44 AM CDT	Special Weather Statement	TAE	Washington	31 min
Jun 15, 6:53 AM CDT	Special Marine Warning	TAE		37 min
Jun 15, 11:04 AM CDT	Rip Current Statement	TAE	Gulf	36 hr
Jun 15, 12:55 PM CDT	Special Weather Statement	TAE	Bay	50 min
Jun 15, 12:58 PM CDT	Special Weather Statement	TAE	Jefferson	47 min
Jun 15, 1:20 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Franklin, Gulf, Liberty	25 min
Jun 15, 1:33 PM CDT	Special Weather Statement	TAE	Bay, Calhoun, Walton	42 min
Jun 15, 1:34 PM CDT	Special Weather Statement	TAE	Lafayette	41 min
Jun 15, 1:43 PM CDT	Severe Thunderstorm Warning	TAE	Calhoun, Franklin, Gulf, Liberty	62 min
Jun 15, 1:50 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Walton, Washington	55 min
Jun 15, 1:54 PM CDT	Special Weather Statement	TAE	Leon	36 min
Jun 15, 2:00 PM CDT	Special Weather Statement	TAE	Jefferson	45 min
Jun 15, 2:07 PM CDT	Special Weather Statement	TAE	Wakulla	38 min
Jun 15, 2:14 PM CDT	Special Marine Warning	TAE		61 min
Jun 15, 2:15 PM CDT	Special Weather Statement	TAE	Walton	45 min
Jun 15, 2:16 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun	59 min
Jun 15, 2:26 PM CDT	Special Weather Statement	TAE	Wakulla	49 min
Jun 15, 2:31 PM CDT	Special Marine Warning	TAE		59 min
Jun 15, 2:41 PM CDT	Special Marine Warning	TAE		2 hr
Jun 15, 2:44 PM CDT	Severe Thunderstorm Warning	TAE	Franklin, Jefferson, Leon, Liberty, Wakulla	61 min
Jun 15, 2:51 PM CDT	Special Weather Statement	TAE	Bay, Gulf	39 min
Jun 15, 2:56 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Calhoun, Gulf, Liberty	49 min
Jun 15, 3:02 PM CDT	Special Weather Statement	TAE	Madison	43 min
Jun 15, 3:12 PM CDT	Special Marine Warning	TAE		2 hr
Jun 15, 3:17 PM CDT	Special Weather Statement	TAE	Jefferson	43 min
Jun 15, 3:24 PM CDT	Severe Thunderstorm Warning	TAE	Bay, Franklin, Gulf	51 min
Jun 15, 3:43 PM CDT	Severe Thunderstorm Warning	TAE	Jefferson, Madison	77 min
Jun 15, 4:26 PM CDT	Special Marine Warning	TAE		94 min
Jun 15, 4:32 PM CDT	Special Marine Warning	TAE		88 min
Jun 15, 5:19 PM CDT	Special Weather Statement	TAE	Lafayette	26 min
Jun 15, 5:34 PM CDT	Severe Thunderstorm Warning	TAE	Lafayette	41 min
Jun 15, 5:40 PM CDT	Special Marine Warning	TAE		95 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.