Alert archive / Mississippi / Tornado Warnings in 1997

Tornado Warning 80, NWS Jackson, MS

November 21, 1997Kemper County, Mississippi

NWS Jackson, MS issued this tornado warning at Nov 21, 1997, 10:56 AM CST for Kemper 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: Nov 21, 1997, 10:56 AM CST (16:56 UTC)
Expired: Nov 21, 1997, 11:30 AM CST
In force: 34 min
Issued by: NWS Jackson, MS
Area: Whole counties

County Kemper County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.9 hours before the alert went out and 143 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: 36 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 735 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 138 m²/s²
0-3 km storm-relative helicity: 192 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 211656 RRA
TORJAN
MSC069-211730-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1056 AM CST FRI NOV 21 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1130 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSISSIPPI
 
   ...EASTERN KEMPER COUNTY
 
AT 1055 AM WEATHER SERVICE RADAR INDICATED A POSSIBLE TORNADO ABOUT
7 MILES SOUTHEAST OF DE KALB...MOVING EAST AT 30 MPH. IT WILL
PASS NEAR THE PORTERVILLE AND ELECTRIC MILLS AREAS BY 11 AM.
 
IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS IN AN
INTERIOR ROOM ON THE LOWEST FLOOR.  GET UNDER STURDY FURNITURE.
USE PILLOWS OR CUSHIONS TO COVER YOUR HEAD.
<
67

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 21, 10:45 AM CST	Severe Thunderstorm Warning	JAN	Kemper	30 min
Nov 21, 12:24 PM CST	Severe Thunderstorm Warning	JAN	Lincoln	51 min
Nov 21, 12:53 PM CST	Severe Thunderstorm Warning	JAN	Marion	37 min
Nov 21, 1:22 PM CST	Severe Thunderstorm Warning	JAN	Lamar	38 min
Nov 21, 1:37 PM CST	Severe Thunderstorm Warning	JAN	Forrest	38 min

Nearby

Tornado Warnings in Mississippi, 1997 Every tornado warning in 1997 Tornadoes in 1997

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.