Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 470, NWS Jackson, MS

October 23, 1997Madison Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Oct 23, 1997, 11:04 PM CDT for Madison Parish, Louisiana. It was in force for 26 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Oct 23, 1997, 11:04 PM CDT (04:04 UTC)
Expired
Oct 23, 1997, 11:30 PM CDT
In force
26 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Madison Parish, LA

What was reported inside it

TimeReportWhereRemark
Oct 23, 11:30 PM CDTThunderstorm WindAfton, LAOne mobile home was damaged and several trees and power lines 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

Jackson, MS (KJAN), launched 00:00Z, 4.1 hours before the alert went out and 109 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-pSkew-T log-p diagram, Jackson, MS at 00:00Z on 1997-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 00:00Z on 1997-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1076 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
329 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 240405 RRA
SVRJAN
LAC065-240430-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1104 PM CDT THU OCT 23 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST LOUISIANA
 
   ...CENTRAL AND EASTERN MADISON PARISH
 
AT 1103 PM WEATHER SERVICE RADAR SHOWED A SEVERE THUNDERSTORM CENTERED 5
MILES SOUTHWEST OF TALLULAH...MOVING EAST AT 45 MPH. DAMAGING WINDS
MAY OCCUR WITH THIS STORM. THIS STORM WILL MOVE NEAR OR JUST NORTH
OF MOUND BY 1120 PM.
 
 
PEOPLE NEAR THE STORM SHOULD MOVE INSIDE A STRONG BUILDING AWAY
FROM WINDOWS.  DON'T USE DTELEPHONES OR ELECTRICAL APPLIANCES UNTIL
THE STORM HAS PASSED.  MOTORISTS DON'T DRIVE INTO WATER CROSSINGS.
<
63

Nearby

Severe Thunderstorm Warnings in Louisiana, 1997Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.