Alert archive / Alabama / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 53, NWS Mobile, AL

March 13, 2003Mobile County, Alabama; George County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Mar 13, 2003, 3:46 PM CST for Mobile County, Alabama; George County, Mississippi. It was in force for 44 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 13, 2003, 3:46 PM CST (21:46 UTC)
Expired: Mar 13, 2003, 4:30 PM CST
In force: 44 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

Counties Mobile County, AL, George County, MS

The radar

The Mobile radar (KMOB), 21 km from the middle of the area, began a volume at 21:50 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
Mar 13, 3:10 PM CST	Severe Thunderstorm Watch	SPC	5 hr
Mar 13, 10:10 AM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.8 hours before the alert went out and 155 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: 797 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 711 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 209 m²/s²
0-3 km storm-relative helicity: 247 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

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

999 
WUUS54 KMOB 132146
SVRMOB
ALC097-MSC039-132230-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
346 PM CST THU MAR 13 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GEORGE COUNTY IN SOUTHEAST MISSISSIPPI
  MOBILE COUNTY IN SOUTHWEST ALABAMA

* UNTIL 430 PM CST

* AT 346 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 5 MILES NORTH OF PINEOLA TO 6
  MILES WEST OF MOVELLA...MOVING EAST AT 45 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CALVERT...MOVELLA BY 350 PM CST
  FORT STODDARD...WILMER BY 355 PM CST
  TANNER WILLIAMS...OAK GROVE BY 400 PM CST
  SEMMES...SALCO BY 405 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.

LAT...LON 3115 8796 3083 8799 3057 8811 3069 8840
          3074 8843 3074 8852 3078 8862 3091 8842
          3115 8813

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 6:28 PM CST	Special Marine Warning	MOB		2 hr
Mar 12, 6:28 PM CST	Special Marine Warning	MOB		2 hr
Mar 12, 8:21 PM CST	Special Marine Warning	MOB		2 hr
Mar 13, 1:03 AM CST	Special Marine Warning	MOB		57 min
Mar 13, 1:30 AM CST	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	30 min
Mar 13, 2:06 AM CST	Severe Thunderstorm Warning	MOB	Baldwin	39 min
Mar 13, 2:10 AM CST	Special Marine Warning	MOB		65 min
Mar 13, 2:10 AM CST	Special Marine Warning	MOB		65 min
Mar 13, 2:35 AM CST	Special Marine Warning	MOB		55 min
Mar 13, 9:22 AM CST	Severe Thunderstorm Warning	MOB	Monroe	23 min
Mar 13, 9:26 AM CST	Severe Thunderstorm Warning	MOB	Monroe	19 min
Mar 13, 1:47 PM CST	Severe Thunderstorm Warning	MOB	Clarke	28 min
Mar 13, 2:26 PM CST	Severe Thunderstorm Warning	MOB	Clarke	34 min
Mar 13, 2:59 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe	31 min
Mar 13, 3:05 PM CST	Tornado Warning	MOB	Washington	25 min
Mar 13, 3:10 PM CST	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	50 min
Mar 13, 3:16 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe	29 min
Mar 13, 3:27 PM CST	Severe Thunderstorm Warning	MOB	Washington	33 min
Mar 13, 3:30 PM CST	Severe Thunderstorm Warning	MOB	Clarke, Monroe	30 min
Mar 13, 3:45 PM CST	Severe Thunderstorm Warning	MOB	Conecuh	45 min
Mar 13, 4:00 PM CST	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	45 min
Mar 13, 4:03 PM CST	Special Marine Warning	MOB		117 min
Mar 13, 4:03 PM CST	Special Marine Warning	MOB		117 min
Mar 13, 4:20 PM CST	Severe Thunderstorm Warning	MOB	Covington	40 min
Mar 13, 4:21 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	54 min
Mar 13, 4:26 PM CST	Severe Thunderstorm Warning	MOB	Conecuh	34 min
Mar 13, 4:29 PM CST	Severe Thunderstorm Warning	MOB	Mobile	31 min
Mar 13, 4:38 PM CST	Severe Thunderstorm Warning	MOB	Escambia	22 min
Mar 13, 4:58 PM CST	Severe Thunderstorm Warning	MOB	Covington	47 min
Mar 13, 5:11 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	64 min
Mar 13, 5:13 PM CST	Severe Thunderstorm Warning	MOB	Escambia	32 min
Mar 13, 5:33 PM CST	Severe Thunderstorm Warning	MOB	Baldwin	42 min
Mar 13, 5:44 PM CST	Severe Thunderstorm Warning	MOB	Covington	46 min
Mar 13, 2:35 PM CST	Severe Thunderstorm Warning	MOB	Perry	25 min
Mar 13, 2:38 PM CST	Severe Thunderstorm Warning	MOB	Greene	52 min
Mar 13, 2:52 PM CST	Tornado Warning	MOB	Greene, Wayne	38 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.