Alert archive / Georgia / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 370, NWS Tallahassee, FL

August 10, 2012Brooks County, Lowndes County, Georgia

NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 10, 2012, 9:53 AM EDT for Brooks County, Lowndes County, Georgia. It was in force for 67 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
Aug 10, 2012, 9:53 AM EDT (13:53 UTC)
Expired
Aug 10, 2012, 11:00 AM EDT
In force
67 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Brooks County, GA, Lowndes County, GA

What was reported inside it

TimeReportWhereRemark
Aug 10, 10:00 AM EDTTSTM WND DMG4 Nw Empress, GATREES DOWN ON GREENVILLE HIGHWAY IN SOUTHERN BROOKS COUNTY.
Aug 10, 10:02 AM EDTTSTM WND DMG5 S Quitman, GATREES DOWN ALONG EMPRESS RD IN SOUTHERN BROOKS CO.
Aug 10, 10:34 AM EDTTSTM WND DMG1 Sse Valdosta, GA3 AREAS OF TREES BLOWN DOWN IN VALDOSTA...INCLUDING A TREE BLOWN ON A HOUSE ON TROUP STREET.
Aug 10, 10:42 AM EDTTSTM WND DMG3 E Valdosta, GATRAFFIC LIGHT BLOWN DOWN ON INNER PERIMETER RD.

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, 1.9 hours before the alert went out and 94 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 2012-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2115 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 2012-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.193958Sfc1 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
2115 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
617 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
2 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.

667 
WUUS52 KTAE 101353
SVRTAE
GAC027-185-101500-
/O.NEW.KTAE.SV.W.0370.120810T1353Z-120810T1500Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
953 AM EDT FRI AUG 10 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BROOKS COUNTY IN SOUTH CENTRAL GEORGIA...
  SOUTHWESTERN LOWNDES COUNTY IN SOUTH CENTRAL GEORGIA...

* UNTIL 1100 AM EDT

* AT 951 AM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED 14 MILES SOUTHWEST OF QUITMAN...OR
  NEAR ASHVILLE...AND MOVING NORTHEAST AT 20 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO I-75
  AT EXIT 16 AND VALDOSTA

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 3062 8324 3064 8331 3066 8374 3078 8374
      3089 8324 3063 8317
TIME...MOT...LOC 1353Z 239DEG 19KT 3063 8369

$$

42-DVD
2 follow-up statements
907 
WWUS52 KTAE 101417
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1017 AM EDT FRI AUG 10 2012

GAC027-185-101500-
/O.CON.KTAE.SV.W.0370.000000T0000Z-120810T1500Z/
LOWNDES GA-BROOKS GA-
1017 AM EDT FRI AUG 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 AM EDT
FOR SOUTHEASTERN BROOKS AND SOUTHWESTERN LOWNDES COUNTIES...

AT 1014 AM 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 NANKIN...MOVING
NORTHEAST AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BLUE
SPRINGS...CLYATTVILLE...KINDERLOU...I-75 AT EXIT 11...I-75 AT EXIT
5...I-75 AT EXIT 16...VALDOSTA REGIONAL AIRPORT...TWIN LAKES...
REMERTON...LAKE PARK...DASHER AND VALDOSTA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3089 8324 3063 8317 3062 8324 3064 8331
      3065 8358 3081 8360
TIME...MOT...LOC 1417Z 239DEG 19KT 3074 8345

$$

42-DVD
088 
WWUS52 KTAE 101443
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1043 AM EDT FRI AUG 10 2012

GAC027-101453-
/O.CAN.KTAE.SV.W.0370.000000T0000Z-120810T1500Z/
BROOKS GA-
1043 AM EDT FRI AUG 10 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BROOKS COUNTY IS
CANCELLED...

LAT...LON 3062 8325 3064 8331 3083 8337 3085 8335
      3087 8335 3089 8326 3089 8324 3063 8317
TIME...MOT...LOC 1443Z 239DEG 19KT 3089 8323 3065 8322

$$

GAC185-101500-
/O.CON.KTAE.SV.W.0370.000000T0000Z-120810T1500Z/
LOWNDES GA-
1043 AM EDT FRI AUG 10 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 AM EDT
FOR CENTRAL LOWNDES COUNTY...

AT 1037 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM VALDOSTA TO I-75 AT EXIT 5...MOVING NORTHEAST AT 20
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DASHER...TWIN LAKES AND LAKE PARK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF BLOWING TREES DOWN. SEEK SHELTER NOW 
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!

&&

LAT...LON 3062 8325 3064 8331 3083 8337 3085 8335
      3087 8335 3089 8326 3089 8324 3063 8317
TIME...MOT...LOC 1443Z 239DEG 19KT 3089 8323 3065 8322

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 10:39 AM EDTSevere Thunderstorm WarningTAELanier, Lowndes30 min
Aug 10, 12:13 PM EDTSpecial Weather StatementTAESeminole62 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.