Alert archive / Mississippi / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 209, NWS Mobile, AL

December 13, 2001Greene County, Perry County, Mississippi

NWS Mobile, AL issued this severe thunderstorm warning at Dec 13, 2001, 10:56 PM CST for Greene County, Perry County, Mississippi. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Dec 13, 2001, 10:56 PM CST (04:56 UTC)
Expired: Dec 13, 2001, 11:30 PM CST
In force: 34 min
Issued by: NWS Mobile, AL
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Greene County, MS, Perry County, MS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Dec 13, 8:15 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 4.9 hours before the alert went out and 141 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: 1583 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 452 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 174 m²/s²
0-3 km storm-relative helicity: 194 m²/s²
Significant tornado parameter: 2.4
Supercell composite: 9.4

Open this sounding in Storm Lab

The text

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

495 
WUUS54 KMOB 140458
SVRMOB
MSC041-111-140530-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOBILE AL
1056 PM CST THU DEC 13 2001

THE NATIONAL WEATHER SERVICE IN MOBILE HAS ISSUED A

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

* UNTIL 1130 PM CST

* AT 1056 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER LEAF...MOVING NORTHEAST AT 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NEELY BY 1100 PM CST
  LEAKESVILLE...JONATHAN BY 1110 PM CST

  THE NORTH END OF THE STORM STILL LIES OVER SOUTHEAST PERRY COUNTY...
  NEAR THE TOWN OF BARBARA...AND WILL AFFECT THE BARBARA AREA THROUGH 1105
  PM CST.

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.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

LAT...LON 3106 8892 3099 8885 3099 8869 3119 8843
          3143 8845 3144 8852

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 13, 9:24 PM CST	Severe Thunderstorm Warning	MOB	Perry	36 min
Dec 13, 9:46 PM CST	Tornado Warning	MOB	Perry	14 min
Dec 13, 9:52 PM CST	Severe Thunderstorm Warning	MOB	Greene, Wayne	38 min
Dec 13, 10:32 PM CST	Severe Thunderstorm Warning	MOB	George, Perry, Stone	28 min
Dec 13, 10:32 PM CST	Severe Thunderstorm Warning	MOB	Greene	28 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 2001 Every severe thunderstorm warning in 2001

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.