Alert archive / Alabama / Tornado Warnings in 2009

Tornado Warning 67, NWS Tallahassee, FL

April 13, 2009Houston County, Alabama

NWS Tallahassee, FL issued this tornado warning at Apr 13, 2009, 8:14 AM CDT for Houston County, Alabama. It was in force for 31 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 13, 2009, 8:14 AM CDT (13:14 UTC)
Expired
Apr 13, 2009, 8:45 AM CDT
In force
31 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Houston County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 13, 2:33 AM CDTTornado WatchSPC7 hr

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 1.2 hours before the alert went out and 116 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 2009-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 138 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 2009-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 391 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
138 J/kg
Mixed-layer CIN
-213 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
391 m²/s²
0-3 km storm-relative helicity
472 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KTAE 131314
TORTAE
ALC069-131345-
/O.NEW.KTAE.TO.W.0067.090413T1314Z-090413T1345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
814 AM CDT MON APR 13 2009

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

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

* UNTIL 845 AM CDT

* AT 805 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  A DEVELOPING TORNADO 5 MILES WEST OF COTTONWOOD...MOVING EAST AT 
  45 MPH.

* THE TORNADO WILL BE NEAR...
  GRANGEBURG BY 820 AM CDT...
  HARMON SCHOOL AND 6 MILES SOUTH OF PANSEY BY 825 AM CDT...
  CROSBY AND GORDON BY 830 AM CDT...
  SAFFOLD AND CHATTAHOOCHEE SP BY 835 AM CDT...

LAW ENFORCEMENT REPORTED A TORNADO ON THE GROUND IN EASTERN GENEVA
COUNTY AT 800 AM CDT.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING 
NICKEL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF
70 MPH. IF YOU ARE IN THE PATH OF THIS STORM TAKE COVER IMMEDIATELY

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 AM CDT MONDAY MORNING
FOR SOUTHEAST ALABAMA AND CENTRAL FLORIDA AND SOUTHWEST GEORGIA.

LAT...LON 3116 8547 3118 8510 3116 8507 3113 8504
      3102 8499 3100 8500 3100 8548
TIME...MOT...LOC 1313Z 270DEG 39KT 3107 8533

$$

14-MROCZKA

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 7:09 AM CDTSevere Thunderstorm WarningTAEGeneva36 min
Apr 13, 7:43 AM CDTSevere Thunderstorm WarningTAEDale, Geneva, Houston47 min
Apr 13, 8:14 AM CDTSevere Thunderstorm WarningTAEHenry46 min
Apr 13, 8:17 AM CDTAreal Flood WarningTAECoffee, Dale, Geneva, Henry, Houston8 hr
Apr 13, 8:23 AM CDTSevere Thunderstorm WarningTAEHenry, Houston37 min
Apr 13, 10:56 AM CDTSevere Thunderstorm WarningTAEGeneva, Houston49 min
Apr 13, 11:38 AM CDTSevere Thunderstorm WarningTAEHouston37 min

Nearby

Tornado Warnings in Alabama, 2009Every tornado warning in 2009Tornadoes in 2009

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.