Alert archive / Alabama / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 421, NWS Tallahassee, FL

December 25, 2012Coffee County, Alabama

NWS Tallahassee, FL issued this severe thunderstorm warning at Dec 25, 2012, 10:12 PM CST for Coffee County, Alabama. It was in force for 63 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: Dec 25, 2012, 10:12 PM CST (04:12 UTC)
Expired: Dec 25, 2012, 11:15 PM CST
In force: 63 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Coffee County, AL

The watch it was issued in

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

Issued	Product	Office	Lasted
Dec 25, 9:23 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 4.2 hours before the alert went out and 195 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: 22 J/kg
Mixed-layer CIN: -78 J/kg
Mixed-layer LCL: 563 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 696 m²/s²
0-3 km storm-relative helicity: 921 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

678 
WUUS52 KTAE 260412
SVRTAE
ALC031-260515-
/O.NEW.KTAE.SV.W.0421.121226T0412Z-121226T0515Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1012 PM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

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

* UNTIL 1115 PM CST

* AT 1011 PM CST...THE NATIONAL WEATHER SERVICE HAS DETECTED A LINE
  OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM 21 MILES NORTHWEST OF ELBA TO 30 MILES SOUTHWEST OF ELBA...OR
  ALONG A LINE EXTENDING FROM BRANTLEY TO LIBERTYVILLE...AND MOVING
  NORTHEAST AT 60 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW
  HAVEN...CARL FOLSOM AIRPORT...CAMP ALAFLO..AND NEW HOPE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. IF A TORNADO
IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY.

&&

LAT...LON 3153 8620 3154 8615 3161 8615 3162 8614
      3163 8581 3162 8579 3141 8579 3132 8620
TIME...MOT...LOC 0411Z 238DEG 55KT 3166 8627 3128 8648

$$

08-LAMERS

1 follow-up statement

264 
WWUS52 KTAE 260440
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1040 PM CST TUE DEC 25 2012

ALC031-260515-
/O.CON.KTAE.SV.W.0421.000000T0000Z-121226T0515Z/
COFFEE AL-
1040 PM CST TUE DEC 25 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CST
FOR NORTHERN COFFEE COUNTY...

AT 1035 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 11 MILES NORTH OF WILKINSTOWN TO 8 MILES WEST OF
CURTIS...MOVING NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW 
HAVEN...CARL FOLSOM AIRPORT...ELBA...LOWRY MILL...CAMP ALAFLO...
NEW HOPE...ROETON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3153 8620 3154 8615 3161 8615 3162 8614
      3163 8581 3162 8579 3141 8579 3132 8620
TIME...MOT...LOC 0439Z 242DEG 41KT 3178 8600 3138 8624

$$

08-LAMERS

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 25, 6:09 PM CST	Tornado Warning	TAE	Coffee	36 min
Dec 25, 7:09 PM CST	Wind Advisory	TAE	Coffee, Dale, Geneva, Henry, Houston	18 hr
Dec 25, 10:56 PM CST	Severe Thunderstorm Warning	TAE	Coffee, Geneva	49 min
Dec 25, 11:13 PM CST	Severe Thunderstorm Warning	TAE	Coffee, Dale	32 min
Dec 25, 11:45 PM CST	Special Weather Statement	TAE	Dale, Geneva, Henry	60 min
Dec 26, 12:36 AM CST	Special Weather Statement	TAE	Henry, Houston	54 min
Dec 26, 1:09 PM CST	Freeze Warning	TAE	Coffee, Dale, Geneva, Henry, Houston	14 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2012 Every 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.