Alert archive / Alabama / Tornado Warnings in 2014

Tornado Warning 12, NWS Tallahassee, FL

April 30, 2014Houston County, Alabama

NWS Tallahassee, FL issued this tornado warning at Apr 30, 2014, 2:23 AM CDT for Houston County, Alabama. It was in force for 37 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 30, 2014, 2:23 AM CDT (07:23 UTC)
Expired: Apr 30, 2014, 3:00 AM CDT
In force: 37 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Houston County, AL

The radar

The Ft Rucker radar (KEOX), 40 km from the middle of the area, began a volume at 07:24 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 00:00Z, 7.4 hours before the alert went out and 125 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 124 J/kg
Mixed-layer CIN: -255 J/kg
Mixed-layer LCL: 1698 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 229 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.

839 
WFUS52 KTAE 300723
TORTAE
ALC069-300800-
/O.NEW.KTAE.TO.W.0012.140430T0723Z-140430T0800Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
223 AM CDT WED APR 30 2014

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL HOUSTON COUNTY IN SOUTHEAST ALABAMA...
  THIS INCLUDES THE CITY OF COTTONWOOD...

* UNTIL 300 AM CDT

* AT 219 AM CDT...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE
  NATIONAL WEATHER SERVICE NEAR COTTONWOOD...MOVING NORTH AT 15 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  COWARTS AND ASHFORD

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! LEAVE MOBILE HOMES AND VEHICLES FOR SAFER STRUCTURES.
GET TO THE LOWEST FLOOR AND PUT AS MANY WALLS BETWEEN YOU AND THE
TORNADO AS POSSIBLE.

&&

LAT...LON 3122 8536 3117 8511 3100 8527 3102 8539
TIME...MOT...LOC 0723Z 199DEG 12KT 3105 8532

$$

08-LAMERS

1 follow-up statement

203 
WWUS52 KTAE 300746
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
246 AM CDT WED APR 30 2014

ALC069-300757-
/O.CAN.KTAE.TO.W.0012.000000T0000Z-140430T0800Z/
HOUSTON AL-
246 AM CDT WED APR 30 2014

...THE TORNADO WARNING FOR CENTRAL HOUSTON COUNTY IS CANCELLED...

THE ROTATION THAT PROMPTED THE WARNING HAS WEAKENED.

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 LAW
ENFORCEMENT.

LAT...LON 3122 8536 3117 8511 3100 8527 3102 8539
TIME...MOT...LOC 0747Z 199DEG 12KT 3113 8529

$$

08-LAMERS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 11:07 PM CDT	Severe Thunderstorm Warning	TAE	Dale	38 min
Apr 29, 11:29 PM CDT	Flash Flood Warning	TAE	Coffee, Dale	4 hr
Apr 29, 11:56 PM CDT	Flash Flood Warning	TAE	Geneva	6 hr
Apr 30, 1:20 AM CDT	Flash Flood Warning	TAE	Geneva	6 hr
Apr 30, 1:27 AM CDT	Severe Thunderstorm Warning	TAE	Geneva, Houston	63 min
Apr 30, 1:49 AM CDT	Flash Flood Warning	TAE	Houston	5 hr
Apr 30, 1:53 AM CDT	Tornado Warning	TAE	Houston	37 min
Apr 30, 2:26 AM CDT	Severe Thunderstorm Warning	TAE	Houston	64 min
Apr 30, 4:37 AM CDT	River Flood Warning	TAE	Dale	57 hr
Apr 30, 4:37 AM CDT	River Flood Warning	TAE	Geneva	4 days
Apr 30, 9:50 AM CDT	Severe Thunderstorm Warning	TAE	Dale, Henry	25 min
Apr 30, 12:05 PM CDT	Wind Advisory	TAE	Coffee, Dale, Geneva, Henry, Houston	5 hr
Apr 30, 12:49 PM CDT	Severe Thunderstorm Warning	TAE	Houston	26 min

Nearby

Tornado Warnings in Alabama, 2014 Every tornado warning in 2014 Tornadoes in 2014

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; radar from the NEXRAD Level II archive.