Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 39, NWS Tallahassee, FL

February 24, 20124 counties in Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 24, 2012, 1:58 PM EST for 4 counties in Georgia. It was in force for 30 min. 2 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: Feb 24, 2012, 1:58 PM EST (18:58 UTC)
Expired: Feb 24, 2012, 2:28 PM EST
In force: 30 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

Counties Decatur County, GA, Grady County, GA, Mitchell County, GA, Thomas County, GA

The radar

The Tallahassee radar (KTLH), 76 km from the middle of the area, began a volume at 18:59 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
Feb 24, 2:04 PM EST	TSTM WND DMG	Mount Pleasant, GA	SCATTERED TREES DOWN IN THE NORTHERN PART OF THE COUNTY.
Feb 24, 2:16 PM EST	TSTM WND DMG	4 N Elpino, GA	SCATTERED TREES DOWN IN THE NORTHERN PART OF THE COUNTY.

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.

Issued	Product	Office	Lasted
Feb 24, 12:04 PM EST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 7.0 hours before the alert went out and 75 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: 1115 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 529 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 200 m²/s²
0-3 km storm-relative helicity: 243 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 5.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

967 
WUUS52 KTAE 241858
SVRTAE
GAC087-131-205-275-241945-
/O.NEW.KTAE.SV.W.0039.120224T1858Z-120224T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
158 PM EST FRI FEB 24 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHWESTERN THOMAS COUNTY IN SOUTH CENTRAL GEORGIA...
  NORTHEASTERN DECATUR COUNTY IN SOUTHWEST GEORGIA...
  NORTHERN GRADY COUNTY IN SOUTHWEST GEORGIA...
  SOUTHERN MITCHELL COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 245 PM EST

* AT 154 PM EST...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED NEAR WEST BAINBRIDGE...AND MOVING EAST
  AT 55 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  PELHAM AND OCHLOCKNEE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.

&&

LAT...LON 3112 8400 3111 8402 3110 8400 3105 8400
      3104 8399 3095 8398 3084 8466 3106 8468
      3108 8460 3108 8451 3111 8450 3126 8400
TIME...MOT...LOC 1858Z 255DEG 50KT 3096 8453

$$

38-GODSEY

2 follow-up statements

450 
WWUS52 KTAE 241911
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
211 PM EST FRI FEB 24 2012

GAC087-241921-
/O.CAN.KTAE.SV.W.0039.000000T0000Z-120224T1945Z/
DECATUR GA-
211 PM EST FRI FEB 24 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DECATUR COUNTY IS
CANCELLED...

THE STORM THAT PROMPTED THE WARNING HAS EXITED THE WARNED AREA. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EST FRIDAY EVENING FOR
SOUTHEAST ALABAMA AND NORTH FLORIDA AND SOUTHWESTERN GEORGIA.

LAT...LON 3126 8400 3114 8400 3111 8402 3110 8400
      3105 8400 3104 8399 3095 8398 3089 8436
      3089 8437 3114 8437
TIME...MOT...LOC 1911Z 255DEG 50KT 3101 8433

$$

GAC131-205-275-241945-
/O.CON.KTAE.SV.W.0039.000000T0000Z-120224T1945Z/
THOMAS GA-MITCHELL GA-GRADY GA-
211 PM EST FRI FEB 24 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EST
FOR NORTHERN GRADY...SOUTHERN MITCHELL AND NORTHWESTERN THOMAS
COUNTIES...

AT 208 PM EST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR HARRELLS STILL...
MOVING EAST AT 55 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BRANCHVILLE...ELPINO...CAPEL...AKRIDGE...SPENCE...PELHAM...QUALITY...
OCHLOCKNEE...COTTON...HINSONTON AND LANEY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED... ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EST FRIDAY EVENING FOR
SOUTHEAST ALABAMA AND NORTH FLORIDA AND SOUTHWESTERN GEORGIA.

&&

LAT...LON 3126 8400 3114 8400 3111 8402 3110 8400
      3105 8400 3104 8399 3095 8398 3089 8436
      3089 8437 3114 8437
TIME...MOT...LOC 1911Z 255DEG 50KT 3101 8433

$$

38-GODSEY

635 
WWUS52 KTAE 241928
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
228 PM EST FRI FEB 24 2012

GAC131-205-275-241938-
/O.CAN.KTAE.SV.W.0039.000000T0000Z-120224T1945Z/
THOMAS GA-MITCHELL GA-GRADY GA-
228 PM EST FRI FEB 24 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN GRADY...SOUTHERN
MITCHELL AND NORTHWESTERN THOMAS COUNTIES IS CANCELLED...

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM EST FRIDAY EVENING FOR
SOUTHEAST ALABAMA AND NORTH FLORIDA AND SOUTHWESTERN GEORGIA.

LAT...LON 3126 8400 3114 8400 3111 8402 3110 8400
      3105 8400 3104 8399 3095 8398 3089 8436
      3089 8437 3114 8437
TIME...MOT...LOC 1928Z 255DEG 50KT 3107 8406

$$

38-GODSEY

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 5:59 AM EST	Fire Weather Watch	TAE	Baker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more	14 hr
Feb 24, 11:45 AM EST	Severe Thunderstorm Warning	TAE	Early, Miller, Seminole	30 min
Feb 24, 12:07 PM EST	Severe Thunderstorm Warning	TAE	Baker, Decatur, Grady, Miller, Mitchell, Seminole	38 min
Feb 24, 12:41 PM EST	Severe Thunderstorm Warning	TAE	Baker, Decatur, Grady, Mitchell	34 min
Feb 24, 12:57 PM EST	Tornado Warning	TAE	Colquitt, Mitchell	33 min
Feb 24, 1:11 PM EST	Severe Thunderstorm Warning	TAE	Colquitt, Cook, Mitchell, Tift, Worth	49 min
Feb 24, 1:28 PM EST	Tornado Warning	TAE	Colquitt, Cook	32 min
Feb 24, 1:40 PM EST	Severe Thunderstorm Warning	TAE	Colquitt, Mitchell	50 min
Feb 24, 1:45 PM EST	Tornado Warning	TAE	Berrien, Colquitt, Cook, Tift	17 min
Feb 24, 2:02 PM EST	Severe Thunderstorm Warning	TAE	Colquitt, Cook, Tift, Worth	28 min
Feb 24, 2:16 PM EST	Severe Thunderstorm Warning	TAE	Thomas	29 min
Feb 24, 2:21 PM EST	Severe Thunderstorm Warning	TAE	Berrien, Colquitt, Cook, Irwin, Tift	39 min
Feb 24, 3:49 PM EST	Severe Thunderstorm Warning	TAE	Lanier, Lowndes	26 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012 Every severe thunderstorm warning in 2012

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.