Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 52, NWS Tallahassee, FL

August 29, 2012Jackson County, Florida; Houston County, Alabama

NWS Tallahassee, FL issued this tornado warning at Aug 29, 2012, 5:54 PM CDT for Jackson County, Florida; Houston County, Alabama. It was in force for 36 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 29, 2012, 5:54 PM CDT (22:54 UTC)
Expired
Aug 29, 2012, 6:30 PM CDT
In force
36 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Houston County, AL, Jackson County, FL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 10.9 hours before the alert went out and 103 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 2012-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1779 joules per kilogram.LCLEL10008507005003002001001 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 2012-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
1779 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
468 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

811 
WFUS52 KTAE 292254
TORTAE
ALC069-FLC063-292330-
/O.NEW.KTAE.TO.W.0052.120829T2254Z-120829T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
554 PM CDT WED AUG 29 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL JACKSON COUNTY IN THE PANHANDLE OF FLORIDA...
  SOUTHEASTERN HOUSTON COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 630 PM CDT

* AT 550 PM CDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE NEAR BASCOM...MOVING NORTH AT 25 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  MALONE...CHATTAHOOCHEE SP...LUCY...CROSBY AND HARMON

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 3113 8506 3110 8503 3109 8503 3107 8503
      3105 8501 3088 8501 3087 8521 3113 8521
TIME...MOT...LOC 2254Z 179DEG 21KT 3094 8510

$$

42-DVD
2 follow-up statements
149 
WWUS52 KTAE 292314
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
714 PM EDT WED AUG 29 2012

FLC063-292324-
/O.CAN.KTAE.TO.W.0052.000000T0000Z-120829T2330Z/
JACKSON FL-
614 PM CDT WED AUG 29 2012

...THE TORNADO WARNING FOR NORTH CENTRAL JACKSON COUNTY IS
CANCELLED...

LAT...LON 3113 8506 3110 8503 3107 8503 3105 8501
      3100 8501 3100 8521 3113 8521
TIME...MOT...LOC 2314Z 190DEG 18KT 3103 8507

$$

ALC069-292330-
/O.CON.KTAE.TO.W.0052.000000T0000Z-120829T2330Z/
HOUSTON AL-
614 PM CDT WED AUG 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHEASTERN HOUSTON COUNTY...

AT 609 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR CROSBY...MOVING
NORTH AT 20 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO HARMON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 3113 8506 3110 8503 3107 8503 3105 8501
      3100 8501 3100 8521 3113 8521
TIME...MOT...LOC 2314Z 190DEG 18KT 3103 8507

$$

42-DVD
451 
WWUS52 KTAE 292326
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
626 PM CDT WED AUG 29 2012

ALC069-292337-
/O.EXP.KTAE.TO.W.0052.000000T0000Z-120829T2330Z/
HOUSTON AL-
626 PM CDT WED AUG 29 2012

...THE TORNADO WARNING FOR SOUTHEASTERN HOUSTON COUNTY WILL EXPIRE AT
630 PM CDT...

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 3113 8506 3110 8503 3107 8503 3105 8501
      3100 8502 3100 8521 3113 8521
TIME...MOT...LOC 2327Z 190DEG 18KT 3109 8506

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 2:13 AM CDTRip Current StatementTAEBay, Franklin, Gulf, Walton48 hr
Aug 29, 2:13 AM CDTHigh Surf AdvisoryTAEBay, Gulf, Walton48 hr
Aug 29, 9:31 AM CDTSpecial Weather StatementTAELeon29 min
Aug 29, 11:39 AM CDTSpecial Weather StatementTAEWakulla51 min
Aug 29, 2:10 PM CDTSpecial Weather StatementTAEWakulla35 min
Aug 29, 2:27 PM CDTSpecial Weather StatementTAELeon48 min
Aug 29, 3:54 PM CDTSpecial Weather StatementTAEWakulla36 min
Aug 29, 4:13 PM CDTSpecial Weather StatementTAEGadsden, Leon47 min
Aug 29, 4:47 PM CDTSpecial Weather StatementTAEJackson28 min
Aug 29, 4:59 PM CDTTornado WarningTAEJackson31 min
Aug 29, 5:06 PM CDTTornado WarningTAEJackson24 min
Aug 29, 5:24 PM CDTTornado WarningTAEGeneva, Houston36 min
Aug 29, 5:29 PM CDTTornado WarningTAEHouston31 min

Nearby

Tornado Warnings in Florida, 2012Tornado Warnings in Alabama, 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.