Alert archive / Alabama / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 124, NWS Mobile, AL

December 7, 2004Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Dec 7, 2004, 5:05 AM CST for Choctaw County, Alabama. It was in force for 55 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 7, 2004, 5:05 AM CST (11:05 UTC)
Expired
Dec 7, 2004, 6:00 AM CST
In force
55 min
Issued by
NWS Mobile, AL
Area
Counties, with a storm outline in the text

County Choctaw County, AL

The radar

The Jackson/Brandon,MS radar (KDGX), 160 km from the middle of the area, began a volume at 11:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 11.1 hours before the alert went out and 169 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, Jackson, MS at 00:00Z on 2004-12-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 278 joules per kilogram.LCLLFCEL10008507005003002001001 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, Jackson, MS at 00:00Z on 2004-12-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.1939587897Sfc1 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
278 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
650 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 071105
SVRMOB
ALC023-071200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
504 AM CST TUE DEC 7 2004

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  CHOCTAW COUNTY IN SOUTHWEST ALABAMA

* UNTIL 600 AM CST

* AT 503 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  A LINE OF SEVERE THUNDERSTORMS 13 MILES WEST OF HINTON...MOVING    
  EAST AT 35 MPH INTO WESTERN CHOCTAW COUNTY ALABAMA.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  HINTON BY 515 AM CST
  ROCK SPRINGS AND LAND BY 525 AM CST
  RIDERWOOD BY 530 AM CST
  BUTLER BY 540 AM CST

THIS IS A DANGEROUS LINE OF STORMS. IF YOU ARE IN ITS PATH...PREPARE 
FOR DAMAGING WINDS TO NEAR 60 MPH...AND DEADLY CLOUD TO GROUND 
LIGHTNING. TAKE COVER IN A STURDY SHELTER UNTIL THE STORMS HAVE 
PASSED.

LAT...LON 3230 8845 3188 8847 3188 8809 3230 8802

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 7, 6:03 AM CSTSevere Thunderstorm WarningMOBChoctaw, Clarke57 min
Dec 7, 6:24 AM CSTSevere Thunderstorm WarningMOBWashington51 min
Dec 7, 7:24 AM CSTSevere Thunderstorm WarningMOBWashington36 min
Dec 7, 7:30 AM CSTSevere Thunderstorm WarningMOBClarke45 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2004Every severe thunderstorm warning in 2004

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; radar from the NEXRAD Level II archive.