Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 393, NWS Jackson, MS

June 29, 1997Jefferson Davis County, Lawrence County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 29, 1997, 4:45 PM CDT for Jefferson Davis County, Lawrence County, Mississippi. It was in force for 45 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
Jun 29, 1997, 4:45 PM CDT (21:45 UTC)
Expired
Jun 29, 1997, 5:30 PM CDT
In force
45 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Jefferson Davis County, MS, Lawrence County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 9.8 hours before the alert went out and 85 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 1997-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 823 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 1997-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 square meters per square second.1939Sfc1 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
823 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
739 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
-2 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.

787 
WUUS1 KJAN 292146 RRA
SVRJAN
MSC065-077-292230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
445 PM CDT SUN JUN 29 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...JEFFERSON DAVIS COUNTY...LAWRENCE COUNTY
 
AT 444 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF SILVER
CREEK MOVING NORTH-NORTH EAST AT 15 MPH. THE STORM WILL MOVE ACROSS
SILVER CREEK INTO NORTHER JEFFERSON DAVIS COUNTY BY 500PM.
 
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.
<
 
74

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 28, 8:09 PM CDTFlash Flood WarningJANMontgomery2 hr
Jun 28, 8:26 PM CDTFlash Flood WarningJANLauderdale2 hr
Jun 28, 10:02 PM CDTSevere Thunderstorm WarningJANNeshoba43 min
Jun 28, 10:27 PM CDTSevere Thunderstorm WarningJANNewton48 min
Jun 29, 2:27 PM CDTSevere Thunderstorm WarningJANScott48 min
Jun 29, 3:20 PM CDTSevere Thunderstorm WarningJANNewton55 min
Jun 29, 3:31 PM CDTSevere Thunderstorm WarningJANNoxubee59 min
Jun 29, 3:42 PM CDTSevere Thunderstorm WarningJANJones48 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 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.