Alert archive / Georgia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 186, NWS Tallahassee, FL

July 12, 20214 counties in Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Jul 12, 2021, 4:23 PM EDT for 4 counties in Georgia. It was in force for 37 min. 4 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: Jul 12, 2021, 4:23 PM EDT (20:23 UTC)
Expired: Jul 12, 2021, 5:00 PM EDT
In force: 37 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Moody AFB radar (KVAX), 30 km from the middle of the area, began a volume at 20:24 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 12, 4:28 PM EDT	TSTM WND DMG	5 Sw Moody Afb, GA	NUMEROUS TREES AND POWERLINES DOWN ALONG SR-125 IN BEMISS BETWEEN BEMISS KNIGHTS ACADEMY ROAD AND STUDSTILL ROAD. SOME TREES ON HOUSES. TIME ESTIMATED BY RADAR.
Jul 12, 4:29 PM EDT	TSTM WND DMG	5 Sw Moody Afb, GA	ROOF OFF A BARN NEAR OLD PINE ROAD AND MULLIGAN ROAD. TIME ESTIMATED BY RADAR.
Jul 12, 4:56 PM EDT	TSTM WND DMG	3 Ne Cecil, GA	TREE DOWN ON OLD COFFEE ROAD. TIME ESTIMATED BY RADAR.
Jul 12, 5:02 PM EDT	TSTM WND DMG	4 Sse Massee, GA	TREE DOWN ON REGISTER ROAD.

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, 8.4 hours before the alert went out and 113 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: 1382 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 910 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

685 
WUUS52 KTAE 122023
SVRTAE
GAC019-075-173-185-122100-
/O.NEW.KTAE.SV.W.0186.210712T2023Z-210712T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tallahassee FL
423 PM EDT Mon Jul 12 2021

The National Weather Service in Tallahassee has issued a

* Severe Thunderstorm Warning for...
  Southeastern Cook County in south central Georgia...
  South central Berrien County in south central Georgia...
  West central Lanier County in south central Georgia...
  Northwestern Lowndes County in south central Georgia...

* Until 500 PM EDT.

* At 423 PM EDT, a severe thunderstorm was located near Moody Air
  Force Base, or near Valdosta, moving north at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Valdosta, Adel, Hahira, Ray City, Moody Air Force Base, Cecil,
  Barretts, New Lois, I-75 At Exit 29, Allenville, I-75 At Exit 22
  and Pine Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3085 8335 3086 8336 3110 8348 3119 8318
      3092 8314
TIME...MOT...LOC 2023Z 162DEG 19KT 3095 8327 

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

55-SCHOLL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 12, 11:34 AM EDT	Special Weather Statement	TAE	Lowndes	41 min
Jul 12, 1:42 PM EDT	Special Weather Statement	TAE	Seminole	48 min
Jul 12, 2:06 PM EDT	Special Weather Statement	TAE	Miller, Seminole	39 min
Jul 12, 2:38 PM EDT	Special Weather Statement	TAE	Early, Miller	52 min
Jul 12, 3:12 PM EDT	Special Weather Statement	TAE	Calhoun	48 min
Jul 12, 3:16 PM EDT	Special Weather Statement	TAE	Clay	44 min
Jul 12, 3:39 PM EDT	Special Weather Statement	TAE	Clay, Quitman	66 min
Jul 12, 3:42 PM EDT	Special Weather Statement	TAE	Lowndes	48 min
Jul 12, 4:11 PM EDT	Special Weather Statement	TAE	Lee, Worth	49 min
Jul 12, 4:17 PM EDT	Special Weather Statement	TAE	Lanier, Lowndes	43 min
Jul 12, 4:50 PM EDT	Severe Thunderstorm Warning	TAE	Berrien, Colquitt, Cook, Lowndes, Tift	40 min
Jul 12, 5:04 PM EDT	Special Weather Statement	TAE	Lee	41 min
Jul 12, 5:10 PM EDT	Special Weather Statement	TAE	Berrien	35 min
Jul 12, 5:23 PM EDT	Special Weather Statement	TAE	Berrien, Irwin, Tift	52 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.