Alert archive / Alabama / Tornado Warnings in 2011

Tornado Warning 29, NWS Tallahassee, FL

April 16, 2011Dale County, Henry County, Alabama

NWS Tallahassee, FL issued this tornado warning at Apr 16, 2011, 2:12 AM CDT for Dale County, Henry County, Alabama. It was in force for 33 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 16, 2011, 2:12 AM CDT (07:12 UTC)
Expired
Apr 16, 2011, 2:45 AM CDT
In force
33 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

Counties Dale County, AL, Henry County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 16, 2:05 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.2 hours before the alert went out and 163 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 2011-04-16Temperature 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 00:00Z on 2011-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.19395878Sfc1 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
1577 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
78 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.

734 
WFUS52 KTAE 160712
TORTAE
ALC045-067-160745-
/O.NEW.KTAE.TO.W.0029.110416T0712Z-110416T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
212 AM CDT SAT APR 16 2011

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  DALE COUNTY IN SOUTHEAST ALABAMA...
  HENRY COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 245 AM CDT

* AT 210 AM CDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE NEAR HUNT FIELD...MOVING NORTHEAST AT 45
  MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO DALE
  COUNTY LAKE...EWELL...BROWNS CROSSROADS...MABSON...BEAMON...SYLVAN
  GROVE...ASBURY...GOLDBERG FIELD...SNOW HILL...WARD BRIDGE...
  KIRKLAND CROSSROADS...ECHO...BLACKWOOD...BELLS CROSSROADS...SNELLS
  CROSSROADS...BAREFIELD CROSSROADS...BERTHA...NEWVILLE...CLOPTON...
  TUMBLETON...CAPPS...DANCEY...BALKUM...MURPHY STATION...GRABALL...
  ABBEVILLE AND MILLER

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 3168 8530 3144 8512 3129 8564 3144 8575
TIME...MOT...LOC 0712Z 239DEG 40KT 3141 8560

$$

42-DVD
1 follow-up statement
507 
WWUS52 KTAE 160726
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
226 AM CDT SAT APR 16 2011

ALC045-067-160745-
/O.CON.KTAE.TO.W.0029.000000T0000Z-110416T0745Z/
DALE AL-HENRY AL-
226 AM CDT SAT APR 16 2011

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CDT FOR HENRY AND
EASTERN DALE COUNTIES...

AT 221 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A DEVELOPING TORNADO NEAR SNOW HILL...MOVING NORTHEAST AT 
45 MPH. HAIL FIVE EIGHTHS OF AN INCH IN DIAMETER WAS ALSO REPORTED 
AT CAIRNS AIRY AIRFIELD.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO BELLS
CROSSROADS...SNELLS CROSSROADS...BAREFIELD CROSSROADS...BERTHA...
NEWVILLE...CLOPTON...TUMBLETON...CAPPS...DANCEY...BALKUM...MURPHY
STATION...GRABALL...ABBEVILLE AND MILLER

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 AM CDT SATURDAY MORNING
FOR SOUTHEAST ALABAMA AND NORTHWEST FLORIDA AND SOUTHWESTERN GEORGIA.

&&

LAT...LON 3150 8563 3168 8530 3144 8512 3132 8554
TIME...MOT...LOC 0725Z 238DEG 38KT 3149 8547

$$

42-DVD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 12:54 AM CDTTornado WarningTAECoffee51 min
Apr 16, 1:39 AM CDTSevere Thunderstorm WarningTAECoffee, Dale, Geneva, Henry, Houston51 min
Apr 16, 2:46 AM CDTSpecial Weather StatementTAEHouston44 min
Apr 16, 9:06 AM CDTFire Weather WatchTAECoffee, Dale, Geneva, Henry, Houston6 hr
Apr 16, 2:45 PM CDTRed Flag WarningTAECoffee, Dale, Geneva, Henry, Houston28 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.