Alert archive / Alabama / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 166, NWS Tallahassee, FL

June 19, 2021Geneva County, Henry County, Houston County, Alabama; Holmes County, Jackson County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Jun 19, 2021, 6:55 PM CDT for Geneva County, Henry County, Houston County, Alabama; Holmes County, Jackson County, Florida. It was in force for 50 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 19, 2021, 6:55 PM CDT (23:55 UTC)
Expired
Jun 19, 2021, 7:45 PM CDT
In force
50 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Geneva County, AL, Henry County, AL, Houston County, AL, Holmes County, FL, Jackson County, FL

The radar

The Ft Rucker radar (KEOX), 33 km from the middle of the area, began a volume at 23:56 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 19, 9:33 AM CDTTornado WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 11.9 hours before the alert went out and 145 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-pSkew-T log-p diagram, Tallahassee Rgnl, FL at 12:00Z on 2021-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1367 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2021-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 147 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1367 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
147 m²/s²
0-3 km storm-relative helicity
315 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.7

Open this sounding in Storm Lab

The text

As transmitted.

665 
WUUS52 KTAE 192355
SVRTAE
ALC061-067-069-FLC059-063-200045-
/O.NEW.KTAE.SV.W.0166.210619T2355Z-210620T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
655 PM CDT Sat Jun 19 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southwestern Henry County in southeastern Alabama...
  Eastern Geneva County in southeastern Alabama...
  Central Houston County in southeastern Alabama...
  Northwestern Jackson County in the Panhandle of Florida...
  Northeastern Holmes County in the Panhandle of Florida...

* Until 745 PM CDT.

* At 655 PM CDT, a severe thunderstorm was located 7 miles south of
  Hartford, or 10 miles east of Geneva, moving northeast at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Cottonwood, Graceville, Headland, Dothan, Hartford, Taylor, Kinsey,
  Slocomb, Cowarts, Webb, Malvern, Rehobeth, Avon, Esto, Madrid,
  Campbellton, Noma, Black, Memphis and Kellys Crossroads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM CDT for southeastern
Alabama...and the Panhandle of Florida.

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

&&

LAT...LON 3089 8582 3109 8578 3125 8552 3124 8549
      3127 8549 3129 8547 3129 8542 3132 8542
      3139 8530 3094 8526
TIME...MOT...LOC 2355Z 233DEG 43KT 3100 8571 

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

72-BUNKER

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 9:24 AM CDTTornado WarningTAEGeneva21 min
Jun 19, 11:47 AM CDTTornado WarningTAEHouston28 min
Jun 19, 1:31 PM CDTSevere Thunderstorm WarningTAECoffee, Geneva44 min
Jun 19, 1:49 PM CDTSevere Thunderstorm WarningTAECoffee, Dale, Geneva, Houston26 min
Jun 19, 2:13 PM CDTSevere Thunderstorm WarningTAECoffee, Dale, Geneva, Houston62 min
Jun 18, 7:18 PM CDTSpecial Marine WarningTAE117 min
Jun 18, 8:23 PM CDTSpecial Marine WarningTAE22 min
Jun 18, 8:50 PM CDTSpecial Marine WarningTAE115 min
Jun 18, 9:24 PM CDTSpecial Marine WarningTAE96 min
Jun 18, 10:17 PM CDTTropical Storm WarningTAE17 hr
Jun 19, 4:57 AM CDTWind AdvisoryTAEBay, Holmes, Walton, Washington20 hr
Jun 19, 7:57 AM CDTSpecial Marine WarningTAE78 min
Jun 19, 8:27 AM CDTSevere Thunderstorm WarningTAEBay, Walton, Washington45 min
Jun 19, 8:58 AM CDTSevere Thunderstorm WarningTAEBay, Calhoun, Holmes, Jackson, Walton, Washington49 min
Jun 19, 9:01 AM CDTTornado WarningTAEWalton14 min
Jun 19, 9:36 AM CDTTornado WarningTAEWashington8 min
Jun 19, 10:19 AM CDTSpecial Marine WarningTAE33 min
Jun 19, 12:52 PM CDTSevere Thunderstorm WarningTAEBay, Walton, Washington38 min
Jun 19, 1:01 PM CDTSevere Thunderstorm WarningTAEWalton44 min
Jun 19, 1:25 PM CDTSevere Thunderstorm WarningTAEHolmes, Walton, Washington50 min
Jun 19, 2:02 PM CDTSpecial Marine WarningTAE118 min
Jun 19, 2:02 PM CDTSevere Thunderstorm WarningTAEBay43 min
Jun 19, 2:09 PM CDTTornado WarningTAEBay36 min
Jun 19, 3:57 PM CDTSpecial Marine WarningTAE2 hr
Jun 19, 5:52 PM CDTSpecial Marine WarningTAE113 min
Jun 19, 6:17 PM CDTSevere Thunderstorm WarningTAEHolmes, Walton, Washington43 min

Nearby

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