Alert archive / Georgia / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 82, NWS Tallahassee, FL

April 28, 2011Brooks County, Lowndes County, Georgia; Jefferson County, Madison County, Florida

NWS Tallahassee, FL issued this severe thunderstorm warning at Apr 28, 2011, 9:30 AM EDT for Brooks County, Lowndes County, Georgia; Jefferson County, Madison County, Florida. It was in force for 45 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
Apr 28, 2011, 9:30 AM EDT (13:30 UTC)
Expired
Apr 28, 2011, 10:15 AM EDT
In force
45 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Jefferson County, FL, Madison County, FL, Brooks County, GA, Lowndes County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.5 hours before the alert went out and 93 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 2011-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3422 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 12:00Z on 2011-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 210 square meters per square second.19395878Sfc1 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
3422 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
473 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
210 m²/s²
0-3 km storm-relative helicity
208 m²/s²
Significant tornado parameter
3.0
Supercell composite
14.5

Open this sounding in Storm Lab

The text

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

826 
WUUS52 KTAE 281330
SVRTAE
FLC065-079-GAC027-185-281415-
/O.NEW.KTAE.SV.W.0082.110428T1330Z-110428T1415Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
930 AM EDT THU APR 28 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN JEFFERSON COUNTY IN FLORIDA...
  NORTHERN MADISON COUNTY IN FLORIDA...
  SOUTHERN BROOKS COUNTY IN SOUTH CENTRAL GEORGIA...
  SOUTHWESTERN LOWNDES COUNTY IN SOUTH CENTRAL GEORGIA...

* UNTIL 1015 AM EDT

* AT 924 AM EDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 17
  MILES NORTHWEST OF MADISON...OR NEAR ASHVILLE...AND MOVING EAST AT
  30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  CHERRY LAKE

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY!

&&

LAT...LON 3041 8321 3043 8377 3077 8374 3087 8328
      3063 8321 3062 8326 3048 8323 3047 8322
TIME...MOT...LOC 1329Z 253DEG 27KT 3058 8363

$$

38-GODSEY
1 follow-up statement
717 
WWUS52 KTAE 281353
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
953 AM EDT THU APR 28 2011

FLC065-281402-
/O.CAN.KTAE.SV.W.0082.000000T0000Z-110428T1415Z/
JEFFERSON FL-
953 AM EDT THU APR 28 2011

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

LAT...LON 3048 8323 3047 8322 3041 8321 3044 8358
      3079 8362 3087 8328 3063 8321 3062 8326
TIME...MOT...LOC 1352Z 253DEG 27KT 3063 8344

$$

FLC079-GAC027-185-281415-
/O.CON.KTAE.SV.W.0082.000000T0000Z-110428T1415Z/
LOWNDES GA-BROOKS GA-MADISON FL-
953 AM EDT THU APR 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EDT
FOR NORTHEASTERN MADISON...SOUTHEASTERN BROOKS AND SOUTHWESTERN
LOWNDES COUNTIES...

AT 946 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR NANKIN...MOVING EAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BLUE
SPRINGS...HANSON...LEE...PINETTA...KINDERLOU...CLYATTVILLE...I-75 AT
EXIT 16...REMERTON...I-75 AT EXIT 11...VALDOSTA REGIONAL AIRPORT AND
VALDOSTA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO GROUND
LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! 
LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU 
CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 500 PM EDT
THURSDAY AFTERNOON FOR NORTH FLORIDA AND SOUTH CENTRAL GEORGIA.

&&

LAT...LON 3048 8323 3047 8322 3041 8321 3044 8358
      3079 8362 3087 8328 3063 8321 3062 8326
TIME...MOT...LOC 1352Z 253DEG 27KT 3063 8344

$$

38-GODSEY

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 5:22 AM EDTSpecial Weather StatementTAESeminole38 min
Apr 28, 5:51 AM EDTTornado WarningTAESeminole39 min
Apr 28, 6:26 AM EDTTornado WarningTAEDecatur, Seminole34 min
Apr 28, 6:56 AM EDTTornado WarningTAEDecatur49 min
Apr 28, 7:06 AM EDTSpecial Weather StatementTAEColquitt, Thomas39 min
Apr 28, 7:49 AM EDTSpecial Weather StatementTAEThomas41 min
Apr 28, 7:58 AM EDTSevere Thunderstorm WarningTAEBrooks, Colquitt, Thomas47 min
Apr 28, 8:19 AM EDTSevere Thunderstorm WarningTAECalhoun, Dougherty, Lee, Terrell, Turner, Worth41 min
Apr 28, 9:13 AM EDTSevere Thunderstorm WarningTAEBrooks, Lowndes47 min
Apr 28, 9:22 AM EDTTornado WarningTAELowndes23 min
Apr 28, 10:14 AM EDTSevere Thunderstorm WarningTAEBrooks, Lanier, Lowndes61 min
Apr 28, 10:20 AM EDTSevere Thunderstorm WarningTAEColquitt, Cook, Grady, Mitchell, Thomas, Tift and 1 more40 min
Apr 28, 10:41 AM EDTSevere Thunderstorm WarningTAEBrooks49 min
Apr 28, 11:13 AM EDTSevere Thunderstorm WarningTAELanier, Lowndes32 min
Apr 28, 3:42 PM EDTFire Weather WatchTAEBaker, Ben Hill, Berrien, Brooks, Calhoun, Clay and 20 more12 hr
Apr 28, 4:03 AM EDTSevere Thunderstorm WarningTAEHolmes27 min
Apr 28, 4:27 AM EDTSevere Thunderstorm WarningTAEHolmes, Jackson48 min
Apr 28, 4:31 AM EDTSpecial Marine WarningTAE59 min
Apr 28, 7:11 AM EDTSpecial Weather StatementTAEGadsden49 min
Apr 28, 7:45 AM EDTSevere Thunderstorm WarningTAEGadsden, Leon45 min
Apr 28, 8:02 AM EDTTornado WarningTAEGadsden, Leon28 min
Apr 28, 8:21 AM EDTSevere Thunderstorm WarningTAELeon39 min
Apr 28, 8:40 AM EDTSevere Thunderstorm WarningTAELeon, Wakulla50 min
Apr 28, 8:56 AM EDTSevere Thunderstorm WarningTAEJefferson, Leon49 min
Apr 28, 9:16 AM EDTTornado WarningTAELeon, Wakulla29 min
Apr 28, 9:45 AM EDTSevere Thunderstorm WarningTAEJefferson, Wakulla60 min
Apr 28, 10:03 AM EDTSevere Thunderstorm WarningTAEJefferson42 min
Apr 28, 10:21 AM EDTSpecial Marine WarningTAE54 min
Apr 28, 10:46 AM EDTSevere Thunderstorm WarningTAEJefferson, Taylor44 min
Apr 28, 11:30 AM EDTSpecial Weather StatementTAETaylor60 min
Apr 28, 11:31 AM EDTSpecial Weather StatementTAEMadison29 min
Apr 28, 12:29 PM EDTSpecial Weather StatementTAELafayette61 min
Apr 28, 12:39 PM EDTSevere Thunderstorm WarningTAEMadison21 min
Apr 28, 12:46 PM EDTSevere Thunderstorm WarningTAELafayette, Taylor44 min
Apr 28, 12:56 PM EDTTornado WarningTAELafayette34 min
Apr 28, 1:29 PM EDTSevere Thunderstorm WarningTAELafayette31 min

Nearby

Severe Thunderstorm Warnings in Georgia, 2011Severe Thunderstorm Warnings in Florida, 2011Every severe thunderstorm warning in 2011

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.