Alert archive / Mississippi / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 177, NWS Mobile, AL

May 17, 2003Perry County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at May 17, 2003, 8:21 PM CDT for Perry County, Mississippi. It was in force for 24 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: May 17, 2003, 8:21 PM CDT (01:21 UTC)
Expired: May 17, 2003, 8:45 PM CDT
In force: 24 min
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Perry County, MS

The radar

The Mobile radar (KMOB), 92 km from the middle of the area, began a volume at 01:24 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 00:00Z, 1.4 hours before the alert went out and 134 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: 2667 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1028 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 107 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 7.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMOB 180121
SVRMOB
MSC111-180145-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
821 PM CDT SAT MAY 17 2003

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PERRY COUNTY IN SOUTHEAST MISSISSIPPI

* UNTIL 845 PM CDT

* AT 821 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 2 MILES WEST OF HINTONVILLE...MOVING NORTHEAST
  AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HINTONVILLE BY 825 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.

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 3129 8901 3113 8896 3113 8885 3144 8884

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 7:14 PM CDT	Tornado Warning	MOB	Wayne	46 min
May 17, 8:13 PM CDT	Severe Thunderstorm Warning	MOB	Greene, Wayne	47 min
May 17, 9:26 PM CDT	Flash Flood Warning	MOB	Greene, Wayne	64 min
May 17, 9:53 PM CDT	Severe Thunderstorm Warning	MOB	Greene	37 min
May 17, 11:07 PM CDT	Severe Thunderstorm Warning	MOB	Greene	38 min
May 18, 4:52 PM CDT	Severe Thunderstorm Warning	MOB	George	23 min
May 18, 6:26 PM CDT	Severe Thunderstorm Warning	MOB	Perry	34 min

Nearby

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.