Alert archive / Louisiana / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 47, NWS Jackson, MS

January 27, 1997Morehouse Parish, Louisiana

NWS Jackson, MS issued this severe thunderstorm warning at Jan 27, 1997, 7:29 PM CST for Morehouse 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
Jan 27, 1997, 7:29 PM CST (01:29 UTC)
Expired
Jan 27, 1997, 8:15 PM CST
In force
46 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Morehouse Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
Jan 27, 2:45 PM CSTSevere Thunderstorm WatchSPC5 hr
Jan 27, 7:00 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.5 hours before the alert went out and 171 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 1997-01-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 801 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 1997-01-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 257 square meters per square second.1939587897Sfc1 km3 km6 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
801 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
568 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
257 m²/s²
0-3 km storm-relative helicity
327 m²/s²
Significant tornado parameter
1.0
Supercell composite
6.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 280129 RRA
SVRJAN
LAC067-280215-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
729 PM CST MON JAN 27 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHEAST LOUISIANA
 
   ...MOREHOUSE PARISH
 
AT 725 PM RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES NORTHEAST OF
BASTROP MOVING EAST 35 MPH. THIS STORM WILL PASS NEAR GALION BY 745 PM.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH...PREPARE FOR
WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...AND DEADLY LIGHTNING.
PEOPLE OUTSIDE SHOULD SEEK SHELTER INSIDE A STRONG BUILDING.
<
74

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 27, 6:42 PM CSTSevere Thunderstorm WarningJANMorehouse48 min
Jan 27, 7:14 PM CSTSevere Thunderstorm WarningJANCatahoula, Concordia46 min
Jan 27, 9:09 PM CSTSevere Thunderstorm WarningJANCatahoula51 min
Jan 27, 10:10 PM CSTSevere Thunderstorm WarningJANTensas50 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.