Alert archive / Alabama / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 15, NWS Mobile, AL

March 12, 2002Covington County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 12, 2002, 12:42 PM CST for Covington County, Alabama. It was in force for 18 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: Mar 12, 2002, 12:42 PM CST (18:42 UTC)
Expired: Mar 12, 2002, 1:00 PM CST
In force: 18 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Covington County, AL

The nearest sounding before it

Eglin AFB/Valpar, FL (KVPS), launched 12:00Z, 6.7 hours before the alert went out and 80 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: 261 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 449 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 123 m²/s²
0-3 km storm-relative helicity: 171 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 121842
SVRMOB
ALC039-121900-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1241 PM CST TUE MAR 12 2002

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 100 PM CST

* AT 1241 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR STEDMAN...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  GREEN BAY BY 1245 PM CST
  ONYCHA BY 1250 PM CST
  ESTOTHEL BY 105 PM CST

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

LAT...LON 3111 8642 3098 8627 3122 8594 3138 8613

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 10:09 AM CST	Special Marine Warning	MOB		2 hr
Mar 12, 10:09 AM CST	Special Marine Warning	MOB		2 hr
Mar 12, 11:55 AM CST	Severe Thunderstorm Warning	MOB	Covington	35 min
Mar 12, 12:03 PM CST	Severe Thunderstorm Warning	MOB	Crenshaw	27 min
Mar 12, 1:37 PM CST	Special Marine Warning	MOB		23 min
Mar 12, 1:57 PM CST	Severe Thunderstorm Warning	MOB	Mobile	48 min
Mar 12, 2:22 PM CST	Special Marine Warning	MOB		68 min
Mar 12, 2:30 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	30 min
Mar 12, 2:55 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	50 min
Mar 12, 3:52 PM CST	Special Marine Warning	MOB		113 min

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; the sounding from the Mesonet's radiosonde archive.