Alert archive / Alabama / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 30, NWS Mobile, AL

April 8, 2002Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 8, 2002, 5:58 PM CDT for Choctaw County, Alabama. It was in force for 47 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 8, 2002, 5:58 PM CDT (22:58 UTC)
Expired: Apr 8, 2002, 6:45 PM CDT
In force: 47 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Choctaw County, AL

What was reported inside it

Time	Report	Where	Remark
Apr 8, 6:05 PM CDT	Thunderstorm Wind 55 E	Fairford, AL	Trees were blown down as a line of thunderstorms moved through Fairford. Part of a roof was also blown off a home. A vehicle was also damaged by the fallen trees.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 11.0 hours before the alert went out and 185 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: 709 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 315 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.

155 
WUUS54 KMOB 082258
SVRMOB
ALC023-097-129-082345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
556 PM CDT MON APR 8 2002

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WASHINGTON COUNTY IN SOUTHWEST ALABAMA
  CHOCTAW COUNTY IN SOUTHWEST ALABAMA
  MOBILE COUNTY IN SOUTHWEST ALABAMA

* UNTIL 645 PM CDT

* AT 556 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SEVERE THUNDERSTORMS CONTINUING IN CENTRAL WASHINGTON 
COUNTY.  A LINE OF EMBEDDED SEVERE THUNDERSTORMS WILL BE MOVING EAST 
NORTHEAST AT 15 TO 20 MPH ACROSS CENTRAL AND NORTHERN MOBILE COUNTY 
THROUGH 645 PM CDT. 

STRONG DAMAGING WIND...LARGE HAIL...AND HEAVY RAIN ARE LIKELY WITH 
THESE STORMS.  IF IN THE PATH OF THESE STORMS...TAKE COVER IN A 
STURDY SHELTER UNTIL THE STORMS HAVE PASSED.

LAT...LON 3170 8846 3066 8842 3065 8808 3102 8796
          3147 8794 3158 8807 3170 8810

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 8, 4:51 PM CDT	Severe Thunderstorm Warning	MOB	Washington	54 min
Apr 8, 5:58 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	267 days

Nearby

Severe Thunderstorm Warnings in Alabama, 2002 Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.