Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 61, NWS Jackson, MS

February 7, 1997Catahoula Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Feb 7, 1997, 10:16 AM CST for Catahoula Parish, Louisiana. It was in force for 29 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 7, 1997, 10:16 AM CST (16:16 UTC)
Expired
Feb 7, 1997, 10:45 AM CST
In force
29 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Catahoula Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 4.3 hours before the alert went out and 182 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 12:00Z on 1997-02-07Temperature 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 12:00Z on 1997-02-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.1939587897Sfc1 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
1656 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
118 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.

057 
WUUS1 KJAN 071617 RRA
SVRJAN
LAC025-071645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
1016 AM CST FRI FEB 7 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1045 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST LOUISIANA
 
   ...NORTHERN CATAHOULA PARISH
 
AT 1015 AM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHWEST
CATAHOULA PARISH NEAR AIMWELL. THE STORM WAS MOVING EAST AT NEAR 50 MPH.
THIS STORM MAY PRODUCE HAIL UP TO ONE INCH IN DIAMETER AS WELL AS STRONG
WINDS. THE TOWN OF HARRISONBURG IS IN THE PATH OF THIS STORM.
 
SEVERE THUNDERSTORMS PRODUCE WIND IN EXCESS OF 55 MPH...LARGE
HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.  MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
<
65

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Feb 7, 9:49 AM CST, 27 minutes before
MSZ001>082-080400-

MISSISSIPPI THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
950 AM CST FRI FEB 7 1997

A STRONG LOW PRESSURE SYSTEM IN THE UPPER LEVELS OF THE ATMOSPHERE
WILL BE MOVING FROM THE SOUTHERN PLAINS THIS MORNING TO THE MID
MISSISSIPPI VALLEY BY LATE TONIGHT. THE COMBINATION OF THIS SYSTEM
AND AN INCREASINGLY MOIST FLOW OF AIR OFF THE GULF OF MEXICO WILL
LEAD TO WIDESPREAD RAIN AND SCATTERED THUNDERSTORMS ACROSS THE
AREA TODAY AND TONIGHT. SOME OF THESE STORMS WILL PRODUCE HEAVY
DOWNPOURS OF RAIND...AND A FEW STORMS MAY PRODUCE HAIL.

THE MAIN THREAT OF ANY HAIL WOULD BE ACROSS CENTRAL AND SOUTHERN
MISSISSIPPI...AND ISOLATED STORMS IN THIS AREA COULD PRODUCE
LARGE HAIL OF DIME SIZE OR GREATER. HOWEVER...ORGANIZED SEVERE
WEATHER IS NOT EXPECTED AT THIS TIME. THEREFORE...THE ACTIVATION
OF SEVERE WEATHER SPOTTERS...HAM RADIO OPERATORS...AND EMERGENCY
MANAGEMENT PERSONNEL WILL LIKELY NOT BE REQUIRED THROUGH TONIGHT.l

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; the sounding from the Mesonet's radiosonde archive.