Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 20, NWS Mobile, AL

March 7, 2003Choctaw County, Washington County, Alabama; Wayne County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Mar 7, 2003, 12:12 AM CST for Choctaw County, Washington County, Alabama; Wayne County, Mississippi. It was in force for 33 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 7, 2003, 12:12 AM CST (06:12 UTC)
Expired: Mar 7, 2003, 12:45 AM CST
In force: 33 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

Counties Choctaw County, AL, Washington County, AL, Wayne County, MS

The radar

The Mobile radar (KMOB), 110 km from the middle of the area, began a volume at 06:11 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

Jackson, MS (KJAN), launched 00:00Z, 6.2 hours before the alert went out and 157 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: 1335 m above ground
0-6 km bulk shear: 89 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 64 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.

000 
WUUS54 KMOB 070612
SVRMOB
ALC023-129-MSC153-070645-
/NEW.KMOB.SV.W.ETN#.0303070610Z-0303070645Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1210 AM CST FRI MAR 7 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WASHINGTON COUNTY IN SOUTHWEST ALABAMA
  CHOCTAW COUNTY IN SOUTHWEST ALABAMA
  WAYNE COUNTY IN SOUTHEAST MISSISSIPPI

* UNTIL 1245 AM CST

* AT 1210 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR MULBERRY...MOVING NORTHEAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  CLARA BY 1215 AM CST
  WAYNESBORO BY 1220 AM CST
  WINCHESTER...ROBINSON JUNCTION BY 1225 AM CST
  DENHAM BY 1230 AM CST

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

LAT...LON 3155 8896 3139 8886 3166 8817 3186 8828

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 2:10 AM CST	Special Marine Warning	MOB		2 hr
Mar 7, 2:10 AM CST	Special Marine Warning	MOB		2 hr
Mar 7, 5:32 AM CST	Special Marine Warning	MOB		58 min
Mar 7, 5:32 AM CST	Special Marine Warning	MOB		58 min
Mar 7, 6:56 AM CST	Special Marine Warning	MOB		64 min
Mar 6, 10:43 PM CST	Severe Thunderstorm Warning	MOB	Greene	32 min
Mar 7, 12:50 AM CST	Severe Thunderstorm Warning	MOB	Greene, Perry, Wayne	25 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2003 Severe Thunderstorm Warnings in Mississippi, 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.