Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 394, NWS Tallahassee, FL

September 3, 2012Coffee County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Sep 3, 2012, 8:57 PM CDT for Coffee County, Alabama. It was in force for 48 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
Sep 3, 2012, 8:57 PM CDT (01:57 UTC)
Expired
Sep 3, 2012, 9:45 PM CDT
In force
48 min
Issued by
NWS Tallahassee, FL
Area
Storm-based polygon

County Coffee County, AL

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 2.0 hours before the alert went out and 199 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, Birmingham, AL at 00:00Z on 2012-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1069 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, Birmingham, AL at 00:00Z on 2012-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 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
1069 J/kg
Mixed-layer CIN
-48 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.9

Open this sounding in Storm Lab

The text

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

149 
WUUS52 KTAE 040157
SVRTAE
ALC031-040245-
/O.NEW.KTAE.SV.W.0394.120904T0157Z-120904T0245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
857 PM CDT MON SEP 3 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  COFFEE COUNTY IN SOUTHEAST ALABAMA...

* UNTIL 945 PM CDT

* AT 852 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 12 MILES NORTH OF ELBA...OR NEAR BLUFF
  SPRING...AND MOVING SOUTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  7 MILES NORTHEAST OF ELBA BY 915 PM CDT...
  NEW BROCKTON BY 930 PM CDT...

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 3153 8619 3154 8616 3154 8615 3161 8615
      3162 8614 3162 8598 3148 8579 3138 8579
      3126 8594 3140 8612
TIME...MOT...LOC 0157Z 317DEG 23KT 3156 8607

$$

18-WOOL
1 follow-up statement
070 
WWUS52 KTAE 040227
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
927 PM CDT MON SEP 3 2012

ALC031-040245-
/O.CON.KTAE.SV.W.0394.000000T0000Z-120904T0245Z/
COFFEE AL-
927 PM CDT MON SEP 3 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR COFFEE COUNTY...

AT 924 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR WOODLAND GROVE
CHURCH...MOVING SOUTHEAST AT 20 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  9 MILES NORTHEAST OF DAMASCUS BY 935 PM CDT...
  CLINTONVILLE...NEW BROCKTON AND TABERNACLE BY 940 PM CDT...
  SHELL ARMY FIELD AND 7 MILES NORTH OF ENTERPRISE MUNICIPAL A/P BY
  945 PM CDT...

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 3153 8619 3154 8616 3154 8615 3161 8615
      3162 8614 3162 8598 3148 8579 3138 8579
      3126 8594 3140 8612
TIME...MOT...LOC 0227Z 308DEG 18KT 3145 8595

$$

18-WOOL

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 3, 7:53 PM CDTSpecial Weather StatementTAEDale67 min
Sep 3, 8:37 PM CDTSevere Thunderstorm WarningTAECoffee23 min
Sep 3, 8:41 PM CDTSpecial Weather StatementTAEHenry64 min
Sep 4, 2:24 AM CDTFlash Flood WatchTAECoffee, Dale, Geneva, Henry, Houston34 hr
Sep 4, 4:17 AM CDTAreal Flood AdvisoryTAECoffee, Dale, Geneva, Houston3 hr
Sep 4, 7:10 AM CDTAreal Flood AdvisoryTAECoffee, Geneva3 hr
Sep 4, 9:58 AM CDTAreal Flood AdvisoryTAECoffee, Geneva3 hr

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.