Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 30, NWS Tallahassee, FL

April 28, 2011Coffee County, Alabama

NWS Tallahassee, FL issued this tornado warning at Apr 28, 2011, 1:03 AM CDT for Coffee County, Alabama. It was in force for 23 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, 1:03 AM CDT (06:03 UTC)
Expired
Apr 28, 2011, 1:26 AM CDT
In force
23 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Coffee County, AL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 6.1 hours before the alert went out and 195 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 00:00Z on 2011-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3101 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 00:00Z on 2011-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 80 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
3101 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
607 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
80 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
1.9
Supercell composite
13.8

Open this sounding in Storm Lab

The text

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

819 
WFUS52 KTAE 280603
TORTAE
ALC031-280645-
/O.NEW.KTAE.TO.W.0030.110428T0603Z-110428T0645Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
103 AM CDT THU APR 28 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

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

* UNTIL 145 AM CDT

* AT 1259 AM CDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE 8 MILES WEST OF KINSTON...OR NEAR
  ONYCHA...MOVING EAST AT 35 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  RHOADES...PERRY STORE...BROOKLYN...ALBERTON...HOLLEY STORE...      
  CURTIS...BASIN...INO...FAIRVIEW...NEW HAVEN.

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 3147 8592 3120 8586 3119 8612 3119 8620
      3141 8620
TIME...MOT...LOC 0603Z 249DEG 32KT 3126 8625

$$

42-DVD
2 follow-up statements
596 
WWUS52 KTAE 280621
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
121 AM CDT THU APR 28 2011

ALC031-280645-
/O.CON.KTAE.TO.W.0030.000000T0000Z-110428T0645Z/
COFFEE AL-
121 AM CDT THU APR 28 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR SOUTHERN
COFFEE COUNTY...

AT 117 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A DEVELOPING TORNADO.  THIS TORNADO WAS LOCATED NEAR 
ALBERTON...MOVING EAST AT 35 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
FAIRVIEW...NEW HAVEN...MARVIN CHAPEL...GOODMAN...DAMASCUS...ASBURY...
TURNER CROSSROADS...MOUNT PLEASANT...LUCILE...RICHBURG...CENTRAL
CITY...BATTENS CROSSROADS...ENTERPRISE MUNICIPAL A/P AND NEW BROCKTON

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3147 8592 3146 8592 3138 8590 3122 8586
      3119 8612 3120 8614 3136 8614
TIME...MOT...LOC 0621Z 256DEG 30KT 3128 8608

$$

42-DVD
119 
WWUS52 KTAE 280626
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
126 AM CDT THU APR 28 2011

ALC031-280636-
/O.CAN.KTAE.TO.W.0030.000000T0000Z-110428T0645Z/
COFFEE AL-
126 AM CDT THU APR 28 2011

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

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 3147 8592 3146 8592 3138 8590 3123 8586
      3119 8612 3120 8614 3136 8614
TIME...MOT...LOC 0626Z 256DEG 30KT 3129 8603

$$

18-WOOL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 1:31 AM CDTSpecial Weather StatementTAEDale44 min
Apr 28, 1:49 AM CDTSpecial Weather StatementTAEGeneva26 min
Apr 28, 2:36 AM CDTSpecial Weather StatementTAEDale24 min
Apr 28, 2:43 AM CDTSpecial Weather StatementTAEGeneva32 min
Apr 28, 3:03 AM CDTSevere Thunderstorm WarningTAEGeneva, Houston27 min
Apr 28, 3:27 AM CDTSevere Thunderstorm WarningTAEGeneva, Houston48 min
Apr 28, 2:42 PM CDTFire Weather WatchTAECoffee, Dale, Geneva, Henry, Houston12 hr

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.