Alert archive / Georgia / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 21, NWS Tallahassee, FL

February 11, 2013Early County, Miller County, Seminole County, Georgia; Jackson County, Florida; Houston County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Feb 11, 2013, 1:50 PM EST for Early County, Miller County, Seminole County, Georgia; Jackson County, Florida; Houston County, Alabama. It was in force for 40 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
Feb 11, 2013, 1:50 PM EST (18:50 UTC)
Expired
Feb 11, 2013, 2:30 PM EST
In force
40 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Houston County, AL, Jackson County, FL, Early County, GA, Miller County, GA, Seminole County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.8 hours before the alert went out and 96 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 2013-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2013-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 357 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
753 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
357 m²/s²
0-3 km storm-relative helicity
346 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.

242 
WUUS52 KTAE 111850
SVRTAE
ALC069-FLC063-GAC099-201-253-111930-
/O.NEW.KTAE.SV.W.0021.130211T1850Z-130211T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1250 PM CST MON FEB 11 2013

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL JACKSON COUNTY IN THE PANHANDLE OF FLORIDA...
  SOUTHEASTERN HOUSTON COUNTY IN SOUTHEAST ALABAMA...
  EXTREME SOUTH CENTRAL EARLY COUNTY IN SOUTHWEST GEORGIA...
  SOUTHWESTERN MILLER COUNTY IN SOUTHWEST GEORGIA...
  NORTHERN SEMINOLE COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 130 PM CST/230 PM EST/

* AT 1248 PM CST...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 23 MILES WEST OF
  DONALSONVILLE...OR NEAR SILLS...AND MOVING EAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  GREENWOOD...MALONE...BASCOM...CROSBY...LOVEDALE...BUENA VISTA...
  LUCY...CHATTAHOOCHEE SP...HORNSVILLE...STEAM MILL...JAKIN...
  RIVERTURN...LITTLE HOPE...SHARPHAGEN...LELA...IRON CITY...
  ENTERPRISE...DONALDSONVILLE A/P AND DAVIS PARK.

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 3117 8483 3092 8477 3083 8529 3098 8533
TIME...MOT...LOC 1851Z 257DEG 27KT 3093 8521

$$
1 follow-up statement
037 
WWUS52 KTAE 111916
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
216 PM EST MON FEB 11 2013

ALC069-FLC063-GAC099-111926-
/O.CAN.KTAE.SV.W.0021.000000T0000Z-130211T1930Z/
HOUSTON AL-EARLY GA-JACKSON FL-
116 PM CST MON FEB 11 2013

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL JACKSON...
EXTREME SOUTH CENTRAL EARLY AND SOUTHEASTERN HOUSTON COUNTIES IS
CANCELLED...

LAT...LON 3113 8482 3092 8477 3089 8495 3094 8498
      3095 8499 3096 8498 3097 8499 3103 8501
TIME...MOT...LOC 1916Z 257DEG 27KT 3097 8500

$$

GAC201-253-111930-
/O.CON.KTAE.SV.W.0021.000000T0000Z-130211T1930Z/
MILLER GA-SEMINOLE GA-
216 PM EST MON FEB 11 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM EST
FOR NORTHERN SEMINOLE AND SOUTHWESTERN MILLER COUNTIES...

AT 212 PM EST...A SEVERE THUNDERSTORM WAS REPORTED CAPABLE OF
PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THIS STORM WAS LOCATED NEAR STEAM MILL...MOVING EAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
RIVERTURN...LITTLE HOPE...SHARPHAGEN...LELA...IRON CITY...
DONALSONVILLE...DONALDSONVILLE A/P AND DAVIS PARK

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF ON OR NEAR LAKE SEMINOLE...GET OUT OF THE WATER AND MOVE INDOORS 
OR INSIDE A VEHICLE. REMEMBER...LIGHTNING CAN STRIKE OUT TO 15 MILES 
FROM THE PARENT THUNDERSTORM. IF YOU CAN HEAR THUNDER...YOU ARE 
CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. MOVE TO SAFE SHELTER NOW. 
DON'T BE CAUGHT ON THE WATER IN A THUNDERSTORM!

&&

LAT...LON 3113 8482 3092 8477 3089 8495 3094 8498
      3095 8499 3096 8498 3097 8499 3103 8501
TIME...MOT...LOC 1916Z 257DEG 27KT 3097 8500

$$

25-CAMP

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 10, 9:37 PM ESTSevere Thunderstorm WarningTAEClay, Early38 min
Feb 10, 10:03 PM ESTSevere Thunderstorm WarningTAEBaker, Calhoun, Clay, Early27 min
Feb 10, 10:30 PM ESTSpecial Weather StatementTAEBaker, Calhoun30 min
Feb 11, 2:02 AM ESTTornado WarningTAEEarly, Seminole28 min
Feb 11, 6:16 AM ESTFlash Flood WatchTAEBaker, Ben Hill, Calhoun, Clay, Dougherty, Early and 10 more48 hr
Feb 11, 10:52 AM ESTAreal Flood AdvisoryTAEBaker, Calhoun, Dougherty, Early, Miller, Seminole3 hr
Feb 11, 11:52 AM ESTAreal Flood AdvisoryTAEBen Hill, Irwin, Tift, Turner, Worth3 hr
Feb 11, 11:56 AM ESTAreal Flood AdvisoryTAEClay, Lee, Randolph, Terrell3 hr
Feb 11, 12:37 PM ESTFlash Flood WarningTAEEarly, Miller113 min
Feb 11, 1:00 PM ESTRiver Flood WarningTAELee69 hr
Feb 11, 1:39 PM ESTAreal Flood AdvisoryTAEBaker, Dougherty111 min
Feb 11, 2:36 PM ESTAreal Flood AdvisoryTAEDecatur, Miller, Seminole114 min
Feb 11, 7:50 AM ESTAreal Flood AdvisoryTAELeon, Liberty, Wakulla40 days
Feb 11, 12:46 PM ESTRiver Flood WarningTAEHolmes, Washington9 days
Feb 11, 12:48 PM ESTRiver Flood WarningTAEWalton11 days
Feb 11, 6:32 PM ESTSevere Thunderstorm WarningTAEBay, Calhoun, Gulf43 min
Feb 10, 8:22 PM ESTTornado WarningTAECoffee23 min
Feb 10, 8:43 PM ESTTornado WarningTAECoffee, Dale32 min
Feb 10, 9:09 PM ESTSevere Thunderstorm WarningTAECoffee, Dale, Henry, Houston51 min
Feb 10, 10:19 PM ESTAreal Flood WarningTAECoffee, Dale, Geneva, Houston3 hr
Feb 10, 10:46 PM ESTAreal Flood WarningTAEDale, Houston3 hr
Feb 11, 1:23 AM ESTSpecial Weather StatementTAEHouston37 min
Feb 11, 1:44 AM ESTSevere Thunderstorm WarningTAEHouston31 min
Feb 11, 2:48 AM ESTAreal Flood WarningTAEGeneva117 min
Feb 11, 8:49 AM ESTFlash Flood WarningTAEGeneva, Houston116 min
Feb 11, 10:39 AM ESTFlash Flood WarningTAEGeneva, Houston6 hr
Feb 11, 1:14 PM ESTRiver Flood AdvisoryTAEDale36 hr
Feb 11, 1:14 PM ESTRiver Flood AdvisoryTAEGeneva36 hr
Feb 11, 4:33 PM ESTAreal Flood WarningTAEGeneva, Houston6 hr

Nearby

Severe Thunderstorm Warnings in Georgia, 2013Severe Thunderstorm Warnings in Florida, 2013Severe Thunderstorm Warnings in Alabama, 2013Every severe thunderstorm warning in 2013

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.