Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 199, NWS Tallahassee, FL

July 28, 2021Berrien County, Cook County, Lanier County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 28, 2021, 6:30 PM EDT for Berrien County, Cook County, Lanier County, Georgia. It was in force for 30 min. 1 report 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: Jul 28, 2021, 6:30 PM EDT (22:30 UTC)
Expired: Jul 28, 2021, 7:00 PM EDT
In force: 30 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Berrien County, GA, Cook County, GA, Lanier County, GA

The radar

The Moody AFB radar (KVAX), 41 km from the middle of the area, began a volume at 22:32 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
Jul 28, 7:00 PM EDT	TSTM WND DMG	1 N Nashville, GA	NUMEROUS TREES AND POWERLINES DOWN ACROSS BERRIEN COUNTY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.5 hours before the alert went out and 147 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: 679 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 861 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

381 
WUUS52 KTAE 282230
SVRTAE
GAC019-075-173-282300-
/O.NEW.KTAE.SV.W.0199.210728T2230Z-210728T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
630 PM EDT Wed Jul 28 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  East central Cook County in south central Georgia...
  Berrien County in south central Georgia...
  Northern Lanier County in south central Georgia...

* Until 700 PM EDT.

* At 630 PM EDT, Doppler radar indicated a severe thunderstorm
  capable of producing damaging winds in excess of 60 mph. This storm
  was located over Willacoochee, and moving southwest at 40 mph.
  Penny size hail may also accompany the damaging winds.

* Locations impacted include...
  Nashville, Ray City, Cottle, Berrien Co A/P, New Lois, Allenville,
  Weber, Glory, Bannockburn and Teeterville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Severe thunderstorms produce damaging winds, destructive hail, deadly
lightning and very heavy rain. For your protection, move to an
interior room on the lowest floor of your home or business. Heavy
rains flood roads quickly so do not drive into areas where water
covers the road.

&&

LAT...LON 3106 8316 3108 8331 3123 8334 3145 8314
      3140 8314 3139 8312 3136 8311 3133 8306
      3130 8306 3128 8304 3123 8305 3119 8305
      3118 8297 3111 8297
TIME...MOT...LOC 2230Z 023DEG 35KT 3136 8306 

$$

21-WD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 8:29 PM EDT	Special Weather Statement	TAE	Lowndes	46 min
Jul 27, 8:45 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Lowndes	30 min
Jul 28, 2:34 PM EDT	Heat Advisory	TAE	Baker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more	28 hr
Jul 28, 5:34 PM EDT	Special Weather Statement	TAE	Ben Hill, Irwin	41 min
Jul 28, 6:14 PM EDT	Special Weather Statement	TAE	Berrien, Cook, Irwin, Tift, Turner	46 min
Jul 28, 6:21 PM EDT	Areal Flood Advisory	TAE	Thomas	114 min
Jul 28, 6:40 PM EDT	Special Weather Statement	TAE	Berrien, Colquitt, Cook, Irwin, Tift, Turner	50 min
Jul 28, 6:51 PM EDT	Areal Flood Advisory	TAE	Grady	114 min
Jul 28, 7:00 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Brooks, Cook, Lanier, Lowndes	45 min
Jul 28, 7:22 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Brooks, Colquitt, Cook, Thomas, Tift and 1 more	38 min
Jul 28, 7:44 PM EDT	Special Weather Statement	TAE	Baker, Early, Miller	46 min
Jul 28, 7:56 PM EDT	Severe Thunderstorm Warning	TAE	Brooks, Colquitt, Cook, Lowndes, Thomas	34 min

Nearby

Severe Thunderstorm Warnings in Georgia, 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.