Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 3, NWS Mobile, AL

February 15, 2003Choctaw County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Feb 15, 2003, 7:10 PM CST for Choctaw County, Alabama. It was in force for 50 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: Feb 15, 2003, 7:10 PM CST (01:10 UTC)
Expired: Feb 15, 2003, 8:00 PM CST
In force: 50 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), 140 km from the middle of the area, began a volume at 01:12 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
Feb 15, 5:40 PM CST	Tornado Watch	SPC	4 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.2 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1255 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 310 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.

153 
WUUS54 KMOB 160110
SVRMOB
ALC023-160200-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
709 PM CST SAT FEB 15 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 800 PM CST

* AT 709 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 5 MILES NORTH OF ISNEY TO 6 MILES
  SOUTH OF ISNEY...MOVING EAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  WATER VALLEY BY 715 PM CST
  PARAGON BY 720 PM CST
  CYRIL...SOUWILPA BY 725 PM CST
  TOXEY...HODGEWOOD BY 730 PM CST

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.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS.

LAT...LON 3217 8844 3172 8846 3171 8811 3182 8820
          3191 8815 3208 8814

The office that day

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

Issued	Product	Office	Lasted
Feb 15, 6:35 PM CST	Special Marine Warning	MOB	55 min
Feb 15, 10:51 PM CST	Special Marine Warning	MOB	54 min
Feb 16, 12:31 AM CST	Special Marine Warning	MOB	59 min
Feb 16, 1:51 AM CST	Special Marine Warning	MOB	54 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.