Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 366, NWS Tallahassee, FL

August 8, 2012Houston County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Aug 8, 2012, 1:52 PM CDT for Houston 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
Aug 8, 2012, 1:52 PM CDT (18:52 UTC)
Expired
Aug 8, 2012, 2:15 PM CDT
In force
23 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Houston County, AL

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 6.9 hours before the alert went out and 133 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 2012-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2519 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 2012-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.1939Sfc1 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
2519 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
564 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
48 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.

319 
WUUS52 KTAE 081852
SVRTAE
ALC069-081915-
/O.NEW.KTAE.SV.W.0366.120808T1852Z-120808T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
152 PM CDT WED AUG 8 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL HOUSTON COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 215 PM CDT

* AT 149 PM CDT...THE NATIONAL WEATHER SERVICE HAS DETECTED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
  MPH.  THIS STORM WAS LOCATED NEAR DOTHAN...AND MOVING SOUTHEAST AT
  10 MPH.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY. PEOPLE OUTSIDE SHOULD MOVE INSIDE A STRONG BUILDING BUT
AWAY FROM WINDOWS.

&&

LAT...LON 3126 8518 3105 8534 3113 8548 3120 8548
      3128 8540
TIME...MOT...LOC 1852Z 301DEG 8KT 3121 8539

$$

08-LAMERS
1 follow-up statement
793 
WWUS52 KTAE 081914
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
214 PM CDT WED AUG 8 2012

ALC069-081923-
/O.EXP.KTAE.SV.W.0366.000000T0000Z-120808T1915Z/
HOUSTON AL-
214 PM CDT WED AUG 8 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL HOUSTON COUNTY WILL
EXPIRE AT 215 PM CDT...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED. THEREFORE 
THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER...THUNDERSTORMS MAY 
CONTINUE TO AFFECT HOUSTON COUNTY WITH SOME GUSTY WINDS AND 
LIGHTNING THROUGH 3 PM CDT.

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE AT 
(8 5 0) 9 4 2 8 8 3 3. OR...CONTACT LAW ENFORCEMENT.

LAT...LON 3126 8518 3105 8534 3113 8548 3120 8548
      3128 8540
TIME...MOT...LOC 1913Z 301DEG 8KT 3119 8534

$$

08-LAMERS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 2:27 AM CDTDense Fog AdvisoryTAECoffee, Dale, Geneva, Henry, Houston5 hr
Aug 8, 12:48 PM CDTSpecial Weather StatementTAEHouston57 min
Aug 8, 1:42 PM CDTSpecial Weather StatementTAEHouston63 min
Aug 8, 1:59 PM CDTAreal Flood AdvisoryTAEHouston2 hr
Aug 8, 2:05 PM CDTSpecial Weather StatementTAEGeneva15 min
Aug 8, 2:17 PM CDTSpecial Weather StatementTAEHouston43 min
Aug 8, 2:43 PM CDTAreal Flood AdvisoryTAEGeneva2 hr
Aug 8, 3:55 PM CDTSevere Thunderstorm WarningTAECoffee, Geneva25 min
Aug 8, 4:05 PM CDTAreal Flood AdvisoryTAECoffee, Geneva115 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2012Every severe thunderstorm warning in 2012

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.