Alert archive / Mississippi / Tornado Warnings in 2000

Tornado Warning 31, NWS Jackson, MS

February 18, 2000Grenada County, Mississippi

NWS Jackson, MS issued this tornado warning at Feb 18, 2000, 5:26 PM CST for Grenada 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 counties it named.

The facts

Issued: Feb 18, 2000, 5:26 PM CST (23:26 UTC)
Expired: Feb 18, 2000, 6:00 PM CST
In force: 34 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Grenada 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
Feb 18, 2:00 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 11.4 hours before the alert went out and 119 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: 84 J/kg
Mixed-layer CIN: -282 J/kg
Mixed-layer LCL: 693 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 519 m²/s²
0-3 km storm-relative helicity: 495 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KJAN 182327
TORJAN
MSC043-190000-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
526 PM CST FRI FEB 18 2000

THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A

* TORNADO WARNING FOR...
  GRENADA COUNTY IN NORTH CENTRAL MISSISSIPPI

* UNTIL 600 PM CST

* AT 526 PM CST...EMERGENCY MANAGEMENT REPORTED A TORNADO OVER 
  GRENADA COUNTY...OR ABOUT 8 MILES NORTHEAST OF GRENADA...MOVING    
  EAST AT 40 MPH.

THIS TORNADO WILL MAINLY AFFECT INTERSTATE 55 AND RURAL AREAS NORTH 
OF THE CITY OF GRENADA.

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU
ARE NEAR THE PATH OF THIS DANGEROUS TORNADO..TAKE COVER NOW!

LAT...LON 3393 8980 3375 8981 3371 8921 3393 8919

62

The office that day

Everything else NWS Jackson, MS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 17, 6:15 PM CST	Tornado Warning	JAN	Jasper, Newton	45 min
Feb 18, 3:45 PM CST	Severe Thunderstorm Warning	JAN	Bolivar	45 min
Feb 18, 4:13 PM CST	Tornado Warning	JAN	Bolivar, Sunflower	32 min
Feb 18, 4:35 PM CST	Severe Thunderstorm Warning	JAN	Leflore	25 min
Feb 18, 4:53 PM CST	Severe Thunderstorm Warning	JAN	Washington	52 min
Feb 18, 4:53 PM CST	Tornado Warning	JAN	Grenada	37 min
Feb 18, 5:19 PM CST	Tornado Warning	JAN	Sunflower, Washington	41 min
Feb 18, 5:45 PM CST	Tornado Warning	JAN	Leflore	45 min

Nearby

Tornado Warnings in Mississippi, 2000 Every tornado warning in 2000 Tornadoes in 2000

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.