Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 43, NWS Tallahassee, FL

September 5, 2011Coffee County, Alabama

NWS Tallahassee, FL issued this tornado warning at Sep 5, 2011, 8:07 AM CDT for Coffee County, Alabama. It was in force for 25 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
Sep 5, 2011, 8:07 AM CDT (13:07 UTC)
Expired
Sep 5, 2011, 8:32 AM CDT
In force
25 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Coffee County, AL

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 5, 5:35 AM CDTTornado WatchSPC10 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.1 hours before the alert went out and 197 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 2011-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2763 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 2011-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 223 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
2763 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
465 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
223 m²/s²
0-3 km storm-relative helicity
266 m²/s²
Significant tornado parameter
2.6
Supercell composite
17.8

Open this sounding in Storm Lab

The text

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

889 
WFUS52 KTAE 051307
TORTAE
ALC031-051345-
/O.NEW.KTAE.TO.W.0043.110905T1307Z-110905T1345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
807 AM CDT MON SEP 5 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  COFFEE COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 845 AM CDT

* AT 804 AM CDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE 14 MILES WEST OF ENTERPRISE...OR NEAR
  FAIRVIEW...MOVING NORTH AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  ASBURY...GOODMAN...BASIN...DAMASCUS...TURNER CROSSROADS...
  ENTERPRISE MUNICIPAL A/P...NEW HAVEN...CARL FOLSOM A/P...ELBA...NEW
  BROCKTON...SHELL ARMY FIELD...RICHBURG...CLINTONVILLE...CAMP ALAFLO
  BSA...WOODLAND GROVE CHURCH...LEE...CAMP HUMMING HILLS...WISE
  MILL...TABERNACLE...MIXONS CROSSROADS...ZOAR...ARCUS...LOWRY
  MILL...EANON AND VICTORIA.

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.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A SMALL INTERIOR ROOM.

&&

LAT...LON 3157 8613 3153 8580 3128 8586 3120 8598
      3122 8615
TIME...MOT...LOC 1307Z 198DEG 32KT 3126 8606

$$

14-MROCZKA
1 follow-up statement
728 
WWUS52 KTAE 051332
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
832 AM CDT MON SEP 5 2011

ALC031-051342-
/O.CAN.KTAE.TO.W.0043.000000T0000Z-110905T1345Z/
COFFEE AL-
832 AM CDT MON SEP 5 2011

...THE TORNADO WARNING FOR COFFEE COUNTY IS CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THAT THE ROTATION 
THAT PROMPTED THE TORNADO WARNING HAS WEAKENED. THEREFORE THE 
TORNADIC THREAT WITH THIS THUNDERSTORM HAS DECREASED. 

A TORNADO WATCH REMAINS IN EFFECT UNTIL 400 PM CDT MONDAY AFTERNOON
FOR SOUTHEAST ALABAMA AND CENTRAL FLORIDA AND SOUTHWEST GEORGIA.

LAT...LON 3157 8613 3153 8580 3128 8586 3120 8598
      3122 8615
TIME...MOT...LOC 1332Z 198DEG 32KT 3147 8598

$$

14-MROCZKA

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 4:42 AM CDTTornado WarningTAEGeneva17 min
Sep 5, 1:41 PM CDTSevere Thunderstorm WarningTAEGeneva49 min
Sep 5, 1:52 PM CDTSevere Thunderstorm WarningTAEGeneva, Houston38 min
Sep 5, 1:53 PM CDTSevere Thunderstorm WarningTAEHenry37 min
Sep 5, 2:01 PM CDTSevere Thunderstorm WarningTAECoffee, Dale, Houston44 min
Sep 5, 2:35 PM CDTSevere Thunderstorm WarningTAEGeneva, Henry, Houston40 min
Sep 5, 2:46 PM CDTSevere Thunderstorm WarningTAEDale, Henry44 min
Sep 5, 3:12 PM CDTSevere Thunderstorm WarningTAEHenry, Houston48 min
Sep 5, 3:37 PM CDTSevere Thunderstorm WarningTAEGeneva53 min
Sep 5, 4:03 PM CDTSevere Thunderstorm WarningTAEHouston42 min
Sep 5, 4:17 PM CDTSevere Thunderstorm WarningTAEDale, Houston43 min
Sep 5, 5:42 PM CDTSevere Thunderstorm WarningTAEGeneva, Houston48 min

Nearby

Tornado Warnings in Alabama, 2011Every tornado warning in 2011Tornadoes 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.