Alert archive / Alabama / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 39, NWS Mobile, AL

February 12, 2008Crenshaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 12, 2008, 6:56 PM CST for Crenshaw County, Alabama. It was in force for 34 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: Feb 12, 2008, 6:56 PM CST (00:56 UTC)
Expired: Feb 12, 2008, 7:30 PM CST
In force: 34 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon

County Crenshaw 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
Feb 12, 12:34 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 00:00Z, 0.9 hours before the alert went out and 165 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 577 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: -255 m²/s²
0-3 km storm-relative helicity: -115 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.

000 
WUUS54 KMOB 130057
SVRMOB
ALC041-130130-
/O.NEW.KMOB.SV.W.0039.080213T0056Z-080213T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
656 PM CST TUE FEB 12 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL CRENSHAW COUNTY IN SOUTH CENTRAL ALABAMA...
  THIS INCLUDES THE CITY OF LUVERNE...

* UNTIL 730 PM CST

* AT 656 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES SOUTHWEST OF      
  RUTLEDGE TO 15 MILES SOUTHWEST OF LUVERNE...AND MOVING NORTHEAST 
  AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  RUTLEDGE...LUVERNE AND BRANTLEY BY 705 PM CST...
  7 MILES SOUTHEAST OF HONORAVILLE BY 710 PM CST...
  SAVILLE...PATSBURG...LIVE OAK AND GLENWOOD BY 715 PM CST...
  BRADLEYTON AND PETREY BY 720 PM CST...

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CST TUESDAY EVENING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA.

LAT...LON 3197 8619 3180 8620 3179 8613 3164 8618
      3158 8615 3154 8644 3186 8644
TIME...MOT...LOC 0056Z 226DEG 35KT 3170 8642 3163 8634
          3155 8636

$$

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 12, 6:22 PM CST	Severe Thunderstorm Warning	MOB	Conecuh, Covington, Crenshaw, Escambia	53 min
Feb 12, 7:15 PM CST	Special Marine Warning	MOB		45 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2008 Every severe thunderstorm warning in 2008

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.