Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 30, NWS Tallahassee, FL

March 18, 20215 counties in Georgia; Henry County, Houston County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Mar 18, 2021, 7:01 AM EDT for 5 counties in Georgia; Henry County, Houston County, Alabama. It was in force for 59 min. 3 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
Mar 18, 2021, 7:01 AM EDT (11:01 UTC)
Expired
Mar 18, 2021, 8:00 AM EDT
In force
59 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Henry County, AL, Houston County, AL, Calhoun County, GA, Clay County, GA, Early County, GA, Miller County, GA, Seminole County, GA

The radar

The Ft Rucker radar (KEOX), 45 km from the middle of the area, began a volume at 11:00 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

TimeReportWhereRemark
Mar 18, 7:10 AM EDTTSTM WND GST 453 Nw Donalsonville, GAAWOS STATION K17J DONALSONVILLE AIRPORT.
Mar 18, 7:35 AM EDTTSTM WND DMG4 Ene Cedar Springs, GAA FEW TREES REPORTED DOWN BETWEEN BLAKELY AND JAKIN IN EARLY COUNTY.
Mar 18, 7:44 AM EDTTORNADO3 Sse Early Co A/P, GATDS OBSERVED ON RADAR IN A FORESTED AREA WITH TREE DAMAGE. NO STRUCTURAL DAMAGE REPORTED.

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.

IssuedProductOfficeLasted
Mar 18, 12:02 AM EDTTornado WatchSPC9 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 11.0 hours before the alert went out and 126 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 00:00Z on 2021-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2021-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
171 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

619 
WUUS52 KTAE 181101
SVRTAE
ALC067-069-GAC037-061-099-201-253-181200-
/O.NEW.KTAE.SV.W.0030.210318T1101Z-210318T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
701 AM EDT Thu Mar 18 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southeastern Henry County in southeastern Alabama...
  Eastern Houston County in southeastern Alabama...
  Western Miller County in southwestern Georgia...
  Southeastern Clay County in southwestern Georgia...
  Western Calhoun County in southwestern Georgia...
  Early County in southwestern Georgia...
  Northwestern Seminole County in southwestern Georgia...

* Until 800 AM EDT/700 AM CDT/.

* At 701 AM EDT/601 AM CDT/, severe thunderstorms were located along
  a line extending from near Headland to near Cottonwood, moving east
  at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Abbeville, Cottonwood, Donalsonville, Blakely, Headland, Dothan,
  Kinsey, Ashford, Cowarts, Edison, Webb, Columbia, Centerville,
  Avon, Newville, Gordon, Jakin, Haleburg, Bluffton and Crosby.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 900 AM EDT/800 AM CDT/ for
southeastern Alabama...and southwestern Georgia.

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 3160 8472 3101 8484 3107 8538 3155 8531
TIME...MOT...LOC 1101Z 262DEG 19KT 3141 8527 3112 8534 

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

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 7:32 AM EDTTornado WarningTAEEarly43 min
Mar 18, 7:55 AM EDTSevere Thunderstorm WarningTAEBaker, Calhoun, Clay, Dougherty, Early, Quitman and 2 more65 min
Mar 18, 8:24 AM EDTSevere Thunderstorm WarningTAEBaker, Decatur, Grady, Miller, Mitchell, Seminole51 min
Mar 18, 10:41 AM EDTSpecial Weather StatementTAEBen Hill, Berrien, Brooks, Colquitt, Cook, Irwin and 5 more94 min
Mar 18, 10:52 AM EDTSpecial Weather StatementTAEBrooks53 min
Mar 18, 12:12 PM EDTSpecial Weather StatementTAELanier33 min
Mar 18, 4:34 AM EDTSpecial Weather StatementTAECoffee, Dale, Geneva, Henry86 min
Mar 18, 5:29 AM EDTSevere Thunderstorm WarningTAEGeneva61 min
Mar 18, 6:04 AM EDTSevere Thunderstorm WarningTAECoffee, Dale, Henry, Houston56 min
Mar 18, 6:26 AM EDTTornado WarningTAEDale, Henry, Houston49 min
Mar 18, 7:15 AM EDTTornado WarningTAEHenry30 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2021Severe Thunderstorm Warnings in Alabama, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.