Alert archive / Alabama / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 285, NWS Mobile, AL

December 10, 2008Covington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Dec 10, 2008, 6:31 AM CST for Covington County, Alabama. It was in force for 29 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 10, 2008, 6:31 AM CST (12:31 UTC)
Expired
Dec 10, 2008, 7:00 AM CST
In force
29 min
Issued by
NWS Mobile, AL
Area
Storm-based polygon

County Covington County, AL

The watch it was issued in

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

IssuedProductOfficeLasted
Dec 10, 1:41 AM CSTTornado WatchSPC5 hr

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 0.5 hours before the alert went out and 201 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 12:00Z on 2008-12-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Birmingham, AL at 12:00Z on 2008-12-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -153 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
-153 m²/s²
0-3 km storm-relative helicity
15 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 101231
SVRMOB
ALC039-101300-
/O.NEW.KMOB.SV.W.0285.081210T1231Z-081210T1300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
631 AM CST WED DEC 10 2008

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN COVINGTON COUNTY IN SOUTH CENTRAL ALABAMA...

* UNTIL 700 AM CST

* AT 628 AM CST...THE NATIONAL WEATHER SERVICE INDICATED A SEVERE
  THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING
  WINDS OVER 60 MPH.  THIS STORM WAS NEAR EODA...OR ABOUT 8 MILES
  NORTHEAST OF ANDALUSIA...MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL OTHERWISE REMAIN OVER MAINLY RURAL
  AREAS OF THE INDICATED COUNTY.

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 AM CST WEDNESDAY MORNING
FOR SOUTHWESTERN ALABAMA AND NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

LAT...LON 3123 8649 3146 8646 3147 8640 3146 8640
      3148 8637 3151 8628 3147 8628 3147 8626
      3145 8626 3145 8619 3127 8618
TIME...MOT...LOC 1231Z 241DEG 36KT 3140 8635

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 2:23 AM CSTSevere Thunderstorm WarningMOBClarke, Wilcox52 min
Dec 10, 2:30 AM CSTSevere Thunderstorm WarningMOBChoctaw45 min
Dec 10, 2:35 AM CSTSpecial Marine WarningMOB40 min
Dec 10, 3:09 AM CSTTornado WarningMOBBaldwin, Mobile25 min
Dec 10, 3:16 AM CSTSpecial Marine WarningMOB44 min
Dec 10, 3:25 AM CSTSevere Thunderstorm WarningMOBBaldwin, Conecuh, Escambia, Monroe50 min
Dec 10, 4:01 AM CSTSpecial Marine WarningMOB59 min
Dec 10, 5:45 AM CSTSevere Thunderstorm WarningMOBConecuh, Covington, Escambia45 min
Dec 10, 5:57 AM CSTAreal Flood AdvisoryMOBEscambia3 hr
Dec 10, 6:05 AM CSTSevere Thunderstorm WarningMOBBaldwin40 min
Dec 10, 6:09 AM CSTTornado WarningMOBBaldwin30 min
Dec 10, 6:27 AM CSTSevere Thunderstorm WarningMOBCovington, Crenshaw18 min
Dec 10, 6:45 AM CSTSpecial Marine WarningMOB2 hr
Dec 10, 7:06 AM CSTSevere Thunderstorm WarningMOBBaldwin39 min
Dec 10, 7:08 AM CSTSevere Thunderstorm WarningMOBCovington52 min
Dec 10, 7:24 AM CSTFlash Flood WarningMOBConecuh, Covington, Escambia3 hr
Dec 10, 7:35 AM CSTSevere Thunderstorm WarningMOBBaldwin40 min
Dec 10, 7:38 AM CSTFlash Flood WarningMOBBaldwin112 min
Dec 10, 7:45 AM CSTSevere Thunderstorm WarningMOBEscambia45 min
Dec 10, 8:14 AM CSTSevere Thunderstorm WarningMOBBaldwin46 min
Dec 10, 8:24 AM CSTTornado WarningMOBCovington36 min
Dec 10, 8:49 AM CSTSevere Thunderstorm WarningMOBCovington41 min
Dec 10, 8:57 AM CSTSpecial Marine WarningMOB2 hr
Dec 10, 9:04 AM CSTSevere Thunderstorm WarningMOBCovington26 min
Dec 10, 9:40 AM CSTFlash Flood WarningMOBBaldwin, Conecuh, Covington, Escambia3 hr
Dec 10, 10:46 AM CSTSpecial Marine WarningMOB119 min
Dec 10, 12:44 PM CSTSpecial Marine WarningMOB91 min
Dec 10, 2:08 PM CSTSpecial Marine WarningMOB97 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2008Every 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.