Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 138, NWS Jackson, MS

April 5, 1997West Carroll Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Apr 5, 1997, 6:44 AM CST for West Carroll Parish, Louisiana. It was in force for 46 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
Apr 5, 1997, 6:44 AM CST (12:44 UTC)
Expired
Apr 5, 1997, 7:30 AM CST
In force
46 min
Issued by
NWS Jackson, MS
Area
Whole counties

County West Carroll Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 5, 2:30 AM CSTTornado WatchSPC7 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 0.7 hours before the alert went out and 139 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 1997-04-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 60 joules per kilogram.LCLLFCEL10008507005003002001001 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 1997-04-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 409 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
60 J/kg
Mixed-layer CIN
-183 J/kg
Mixed-layer LCL
718 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
409 m²/s²
0-3 km storm-relative helicity
671 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 051247 RRA
SVRJAN
LAC065-123-051330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
644 AM CST SAT APR 5 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST LOUISIANA
 
   ...MADISON PARISH...WEST CARROLL PARISH
 
AT 644 AM DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM
NEAR GOODWILL TO DELHI TO CROWVILLE. THE STORMS WILL BE MOVING THROUGH
EPPS AND WAVERLY BY 7 AM.
 
A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
<
68

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 6:01 AM CSTSevere Thunderstorm WarningJANMorehouse44 min
Apr 5, 6:03 AM CSTSevere Thunderstorm WarningJANCatahoula27 min
Apr 5, 6:27 AM CSTSevere Thunderstorm WarningJANFranklin, Richland33 min
Apr 5, 6:44 AM CSTSevere Thunderstorm WarningJANMadison46 min
Apr 5, 6:57 AM CSTSevere Thunderstorm WarningJANEast Carroll33 min

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.