Alert archive / Mississippi / Tornado Warnings in 2002

Tornado Warning 41, NWS Mobile, AL

November 11, 2002Perry County, Mississippi

NWS Mobile, AL issued this tornado warning at Nov 11, 2002, 5:54 PM CST for Perry County, Mississippi. It was in force for 38 days. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Nov 11, 2002, 5:54 PM CST (23:54 UTC)
Expired: Dec 19, 2002, 1:30 PM CST
In force: 38 days
Issued by: NWS Mobile, AL
Area: Counties, with a storm outline in the text

County Perry County, MS

What was reported inside it

Time	Report	Where	Remark
Dec 19, 11:45 AM CST	Tornado F0	Rounsaville, MS	A weak tornado briefly touched down near Rounsaville. Several trees were blown down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.9 hours before the alert went out and 158 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: 1089 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 501 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -85 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: -0.4
Supercell composite: -2.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KMOB 112358
TORMOB
MSC111-120030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOBILE AL...CORRECTED...
554 PM CST MON NOV 11 2002

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

* TORNADO WARNING FOR...
  PERRY COUNTY IN SOUTHEAST MISSISSIPPI

* UNTIL 630 PM CST

* AT 550 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 13 MILES SOUTH OF BEAUMONT...MOVING EAST AT 20 MPH.

* THE TORNADO WILL BE MOVING OVER RURAL AREAS OVER SOUTHEAST PERRY   
  COUNTY DURING THE NEXT 40 MINUTES.
  

IF YOU ARE IN THE PATH OF A TORNADO...ABANDON VEHICLES AND TRAILER
HOMES AND SEEK A REINFORCED SHELTER UNTIL THE STORM HAS PASSED.

LAT...LON 3112 8906 3093 8898 3099 8885 3123 8886

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 11, 5:09 PM CST	Tornado Warning	MOB	Stone	38 days
Nov 11, 5:58 PM CST	Tornado Warning	MOB	Perry	38 days

Nearby

Tornado Warnings in Mississippi, 2002 Every tornado warning in 2002 Tornadoes in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.