Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 129, NWS Jackson, MS

March 29, 1997Marion County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 29, 1997, 5:30 PM CST for Marion County, Mississippi. It was in force for 45 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
Mar 29, 1997, 5:30 PM CST (23:30 UTC)
Expired
Mar 29, 1997, 6:15 PM CST
In force
45 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Marion County, MS

What was reported inside it

TimeReportWhereRemark
Mar 29, 5:31 PM CSTHail 0.75Sandy Hook, MS

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

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.5 hours before the alert went out and 110 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, Slidell Radar S, LA at 12:00Z on 1997-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2387 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, Slidell Radar S, LA at 12:00Z on 1997-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 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
2387 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
526 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 292332 RRA
SVRJAN
MSC091-300015-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
530 PM CST SAT MAR 29 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  615 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...SOUTHERN MARION COUNTY
 
AT 529 PM DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM ABOUT 7 MILES
NORTHWEST OF SANDY HOOK. THIS STORM WAS MOVING EAST-SOUTHEAST AT 25
MILES AN HOUR. THIS STORM WILL PASS JUST NORTH OF SANDY HOOK. THIS STORM
MAY PRODUCE HAIL UPTO GOLFBALL SIZE.
 
IF YOU ARE OUTSIDE...SEEK SHELTER IN A STRONG BUILDING AWAY FROM
WINDOWS.  DAMAGING WINDS...LARGE HAIL...VERY HEAVY RAIN...AND
DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
<
 
 
63

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 3:52 PM CSTSevere Thunderstorm WarningJANMarion53 min
Mar 29, 5:05 PM CSTSevere Thunderstorm WarningJANLamar25 min
Mar 29, 5:50 PM CSTSevere Thunderstorm WarningJANForrest40 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.