Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 382, NWS Tallahassee, FL

August 15, 2012Brooks County, Lanier County, Lowndes County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 15, 2012, 2:51 PM EDT for Brooks County, Lanier County, Lowndes County, Georgia. It was in force for 39 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
Aug 15, 2012, 2:51 PM EDT (18:51 UTC)
Expired
Aug 15, 2012, 3:30 PM EDT
In force
39 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Brooks County, GA, Lanier County, GA, Lowndes County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 117 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 2012-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1837 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 2012-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939Sfc1 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
1837 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
786 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

961 
WUUS52 KTAE 151851
SVRTAE
GAC027-173-185-151930-
/O.NEW.KTAE.SV.W.0382.120815T1851Z-120815T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
251 PM EDT WED AUG 15 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL BROOKS COUNTY IN SOUTH CENTRAL GEORGIA...
  WEST CENTRAL LANIER COUNTY IN SOUTH CENTRAL GEORGIA...    
  LOWNDES COUNTY IN SOUTH CENTRAL GEORGIA...
  INCLUDING THE CITY OF VALDOSTA

* UNTIL 330 PM EDT

* AT 246 PM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED 7 MILES NORTHWEST OF VALDOSTA...OR
  NEAR I-75 AT EXIT 22...AND MOVING EAST AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MOODY
  AFB...VALDOSTA AND HAHIRA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT
AWAY FROM WINDOWS.

&&

LAT...LON 3084 8308 3081 8343 3098 8344 3104 8307
TIME...MOT...LOC 1850Z 265DEG 23KT 3090 8336

$$

38-GODSEY
1 follow-up statement
197 
WWUS52 KTAE 151910
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
310 PM EDT WED AUG 15 2012

GAC027-151920-
/O.CAN.KTAE.SV.W.0382.000000T0000Z-120815T1930Z/
BROOKS GA-
310 PM EDT WED AUG 15 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BROOKS COUNTY 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.

LAT...LON 3086 8308 3089 8328 3100 8330 3104 8307
TIME...MOT...LOC 1910Z 265DEG 23KT 3094 8321

$$

GAC173-185-151930-
/O.CON.KTAE.SV.W.0382.000000T0000Z-120815T1930Z/
LOWNDES GA-LANIER GA-
310 PM EDT WED AUG 15 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR WEST CENTRAL LANIER AND NORTHEASTERN LOWNDES COUNTIES...

AT 306 PM EDT...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 MOODY AFB...MOVING
EAST AT 25 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BARRETTS...NAYLOR AND LAKELAND

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

LAT...LON 3086 8308 3089 8328 3100 8330 3104 8307
TIME...MOT...LOC 1910Z 265DEG 23KT 3094 8321

$$

38-GODSEY

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 15, 1:43 PM EDTSpecial Weather StatementTAEBrooks, Thomas47 min
Aug 15, 2:23 PM EDTSpecial Weather StatementTAEBrooks, Lowndes37 min
Aug 15, 2:53 PM EDTSpecial Weather StatementTAEBerrien, Cook67 min
Aug 15, 3:18 PM EDTSpecial Weather StatementTAELanier27 min
Aug 15, 4:43 PM EDTAreal Flood AdvisoryTAEBen Hill92 min
Aug 15, 5:15 PM EDTSpecial Weather StatementTAEDougherty30 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2012Every 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; the sounding from the Mesonet's radiosonde archive.