Alert archive / Alabama / Tornado Warnings in 2012

Tornado Warning 30, NWS Tallahassee, FL

March 23, 2012Geneva County, Henry County, Houston County, Alabama; Early County, Georgia

NWS Tallahassee, FL issued this tornado warning at Mar 23, 2012, 12:49 PM CDT for Geneva County, Henry County, Houston County, Alabama; Early County, Georgia. It was in force for 18 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
Mar 23, 2012, 12:49 PM CDT (17:49 UTC)
Expired
Mar 23, 2012, 1:07 PM CDT
In force
18 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Geneva County, AL, Henry County, AL, Houston County, AL, Early County, GA

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 5.8 hours before the alert went out and 132 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 2012-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 758 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 2012-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
758 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
800 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

462 
WFUS52 KTAE 231749
TORTAE
ALC061-067-069-GAC099-231830-
/O.NEW.KTAE.TO.W.0030.120323T1749Z-120323T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1249 PM CDT FRI MAR 23 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHEASTERN GENEVA COUNTY IN SOUTHEAST ALABAMA...
  SOUTHEASTERN HENRY COUNTY IN SOUTHEAST ALABAMA...
  NORTHERN HOUSTON COUNTY IN SOUTHEAST ALABAMA...
  SOUTHWESTERN EARLY COUNTY IN SOUTHWEST GEORGIA...

* UNTIL 130 PM CDT/230 PM EDT/

* AT 1244 PM CDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE NEAR SLOCOMB...MOVING EAST AT 40 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  TAYLOR...DOTHAN...COWARTS...WEBB...ASHFORD AND COLUMBIA

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! LEAVE MOBILE HOMES AND VEHICLES FOR SAFER STRUCTURES.
MOVE TO A HALLWAY OR CLOSET ON THE LOWEST FLOOR AWAY FROM WINDOWS AND
OUTSIDE WALLS.

&&

LAT...LON 3140 8507 3112 8503 3108 8559 3118 8564
TIME...MOT...LOC 1749Z 252DEG 33KT 3116 8552

$$

15-HARRIGAN
2 follow-up statements
423 
WWUS52 KTAE 231801
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
201 PM EDT FRI MAR 23 2012

ALC067-GAC099-231811-
/O.CAN.KTAE.TO.W.0030.000000T0000Z-120323T1830Z/
EARLY GA-HENRY AL-
201 PM EDT FRI MAR 23 2012

...THE TORNADO WARNING FOR SOUTHEASTERN HENRY AND SOUTHWESTERN EARLY
COUNTIES IS CANCELLED...

LAT...LON 3124 8525 3116 8549 3122 8553 3131 8531
TIME...MOT...LOC 1801Z 238DEG 26KT 3121 8544

$$

ALC061-069-231830-
/O.CON.KTAE.TO.W.0030.000000T0000Z-120323T1830Z/
GENEVA AL-HOUSTON AL-
101 PM CDT FRI MAR 23 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR NORTH
CENTRAL HOUSTON AND EXTREME NORTHEASTERN GENEVA COUNTIES...

AT 1258 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR PETERMAN...MOVING
NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
DOTHAN...SMYRNA AND WEBB

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

&&

LAT...LON 3124 8525 3116 8549 3122 8553 3131 8531
TIME...MOT...LOC 1801Z 238DEG 26KT 3121 8544

$$

15-HARRIGAN
498 
WWUS52 KTAE 231807
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
107 PM CDT FRI MAR 23 2012

ALC061-069-231817-
/O.CAN.KTAE.TO.W.0030.000000T0000Z-120323T1830Z/
GENEVA AL-HOUSTON AL-
107 PM CDT FRI MAR 23 2012

...THE TORNADO WARNING FOR NORTH CENTRAL HOUSTON AND EXTREME
NORTHEASTERN GENEVA COUNTIES IS CANCELLED...

LAT...LON 3124 8525 3116 8549 3122 8553 3131 8531
TIME...MOT...LOC 1807Z 238DEG 26KT 3123 8540

$$

15-HARRIGAN

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 23, 11:19 AM CDTSevere Thunderstorm WarningTAEGeneva26 min
Mar 23, 2:12 PM CDTTornado WarningTAEHenry33 min
Mar 22, 8:01 PM CDTSpecial Weather StatementTAEQuitman29 min
Mar 23, 2:40 PM CDTSpecial Weather StatementTAESeminole50 min
Mar 23, 3:38 PM CDTSpecial Weather StatementTAEMitchell52 min
Mar 23, 4:38 PM CDTSpecial Weather StatementTAEWorth52 min

Nearby

Tornado Warnings in Alabama, 2012Tornado Warnings in Georgia, 2012Every tornado warning in 2012Tornadoes 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.