Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 88, NWS Mobile, AL

April 7, 2003Mobile County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 7, 2003, 1:17 PM CDT for Mobile County, Alabama. It was in force for 28 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: Apr 7, 2003, 1:17 PM CDT (18:17 UTC)
Expired: Apr 7, 2003, 1:45 PM CDT
In force: 28 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Mobile County, AL

The radar

The Mobile radar (KMOB), 40 km from the middle of the area, began a volume at 18:18 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

Slidell Radar S, LA (KSIL), launched 12:00Z, 6.3 hours before the alert went out and 175 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: 1394 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 212 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 8.4

Open this sounding in Storm Lab

The text

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

731 
WUUS54 KMOB 071817
SVRMOB
ALC097-071845-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
117 PM CDT MON APR 7 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 145 PM CDT

* AT 117 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR TURNERVILLE...MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BUCKS...SALCO BY 120 PM CDT

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.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

LAT...LON 3109 8819 3091 8819 3092 8800 3108 8797

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 6, 10:25 PM CDT	Tornado Warning	MOB	Choctaw	65 min
Apr 6, 11:19 PM CDT	Severe Thunderstorm Warning	MOB	Clarke	56 min
Apr 7, 12:29 AM CDT	Severe Thunderstorm Warning	MOB	Wilcox	46 min
Apr 7, 12:37 AM CDT	Tornado Warning	MOB	Wilcox	23 min
Apr 7, 1:03 AM CDT	Tornado Warning	MOB	Wilcox	42 min
Apr 7, 6:46 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw	44 min
Apr 7, 7:52 AM CDT	Severe Thunderstorm Warning	MOB	Wilcox	53 min
Apr 7, 3:42 PM CDT	Severe Thunderstorm Warning	MOB	Covington	48 min
Apr 7, 5:23 PM CDT	Flash Flood Warning	MOB	Baldwin	3 hr

Nearby

Severe Thunderstorm Warnings in Alabama, 2003 Every severe thunderstorm warning in 2003

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.