Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 99, NWS Mobile, AL

April 25, 2003Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Apr 25, 2003, 4:36 PM CDT for Choctaw County, Alabama. It was in force for 54 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 25, 2003, 4:36 PM CDT (21:36 UTC)
Expired: Apr 25, 2003, 5:30 PM CDT
In force: 54 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Choctaw County, AL

The radar

The Mobile radar (KMOB), 158 km from the middle of the area, began a volume at 21:26 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 25, 12:45 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.6 hours before the alert went out and 178 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: 1302 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 572 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 219 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 8.0

Open this sounding in Storm Lab

The text

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

278 
WUUS54 KMOB 252136
SVRMOB
ALC023-252230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
436 PM CDT FRI APR 25 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 530 PM CDT

* AT 436 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES EAST OF LISMAN...MOVING SOUTH AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BUTLER...MT STERLING BY 450 PM CDT
  ARARAT...HODGEWOOD BY 510 PM CDT
  LOU...WIMBLY BY 515 PM CDT
  CHAPPELL HILL BY 520 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.

LAT...LON 3227 8812 3225 8833 3185 8832 3186 8813

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 25, 12:09 AM CDT	Severe Thunderstorm Warning	MOB	Choctaw	36 min
Apr 25, 1:36 AM CDT	Severe Thunderstorm Warning	MOB	Wilcox	24 min
Apr 25, 1:59 AM CDT	Tornado Warning	MOB	Wilcox	31 min
Apr 25, 2:21 AM CDT	Special Marine Warning	MOB		24 min
Apr 25, 5:10 AM CDT	Special Marine Warning	MOB		110 min
Apr 25, 5:10 AM CDT	Special Marine Warning	MOB		110 min
Apr 25, 6:25 AM CDT	Tornado Warning	MOB	Covington	35 min
Apr 25, 6:55 AM CDT	Special Marine Warning	MOB		2 hr
Apr 25, 6:55 AM CDT	Special Marine Warning	MOB		2 hr
Apr 25, 5:28 PM CDT	Severe Thunderstorm Warning	MOB	Washington	47 min
Apr 25, 5:42 PM CDT	Severe Thunderstorm Warning	MOB	Wilcox	63 min
Apr 25, 6:10 PM CDT	Tornado Warning	MOB	Washington	35 min
Apr 25, 6:50 PM CDT	Severe Thunderstorm Warning	MOB	Mobile	40 min

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.