Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 512, NWS Jackson, MS

November 1, 1997Issaquena County, Sharkey County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Nov 1, 1997, 9:25 AM CST for Issaquena County, Sharkey County, Mississippi. It was in force for 50 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
Nov 1, 1997, 9:25 AM CST (15:25 UTC)
Expired
Nov 1, 1997, 10:15 AM CST
In force
50 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Issaquena County, MS, Sharkey County, MS

What was reported inside it

TimeReportWhereRemark
Nov 1, 10:00 AM CSTHail 0.75Rolling Fork, 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

Jackson, MS (KJAN), launched 12:00Z, 3.4 hours before the alert went out and 94 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 1997-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1991 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 1997-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
1991 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
477 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
1.4
Supercell composite
6.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 011526 RRA
SVRJAN
MSC055-125-011615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
925 AM CST SAT NOV 1 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST CENTRAL MISSISSIPPI
 
   ...NORTHERN ISSAQUENA COUNTY...SHARKEY COUNTY
 
AT 925 AM CST DOPPLER RADAR IN JACKSON INDICATED A SEVERE THUNDERSTORM
JUST NORTH OF MAYERSVILLE MOVING EAST NEAR 35 MPH. THIS STORM WILL
APPROACH ROLLING FORK BY 940 AM. LARGE HAIL IS LIKELY WITH 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.
<
 
74

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 31, 11:14 PM CSTSevere Thunderstorm WarningJANMadison31 min
Nov 1, 2:00 AM CSTSevere Thunderstorm WarningJANNoxubee45 min
Nov 1, 9:05 AM CSTSevere Thunderstorm WarningJANYazoo40 min
Nov 1, 9:37 AM CSTSevere Thunderstorm WarningJANMadison53 min
Nov 1, 9:46 AM CSTSevere Thunderstorm WarningJANYazoo44 min
Nov 1, 9:50 AM CSTSevere Thunderstorm WarningJANHolmes55 min
Nov 1, 10:05 AM CSTSevere Thunderstorm WarningJANIssaquena40 min
Nov 1, 10:15 AM CSTSevere Thunderstorm WarningJANSharkey30 min
Nov 1, 10:22 AM CSTSevere Thunderstorm WarningJANLeake53 min
Nov 1, 10:30 AM CSTSevere Thunderstorm WarningJANMadison45 min
Nov 1, 10:31 AM CSTSevere Thunderstorm WarningJANYazoo44 min
Nov 1, 10:54 AM CSTSevere Thunderstorm WarningJANNeshoba, Newton66 min
Nov 1, 11:01 AM CSTSevere Thunderstorm WarningJANHinds59 min
Nov 1, 11:09 AM CSTSevere Thunderstorm WarningJANAttala51 min
Nov 1, 11:13 AM CSTSevere Thunderstorm WarningJANLeake47 min
Nov 1, 11:20 AM CSTSevere Thunderstorm WarningJANRankin55 min
Nov 1, 11:33 AM CSTSevere Thunderstorm WarningJANMadison42 min
Nov 1, 11:38 AM CSTSevere Thunderstorm WarningJANScott52 min
Nov 1, 11:45 AM CSTSevere Thunderstorm WarningJANKemper45 min
Nov 1, 11:57 AM CSTSevere Thunderstorm WarningJANNewton63 min
Nov 1, 12:08 PM CSTSevere Thunderstorm WarningJANRankin52 min
Nov 1, 12:13 PM CSTSevere Thunderstorm WarningJANSimpson, Smith62 min
Nov 1, 12:28 PM CSTSevere Thunderstorm WarningJANKemper32 min
Nov 1, 12:32 PM CSTSevere Thunderstorm WarningJANSimpson58 min
Nov 1, 12:39 PM CSTSevere Thunderstorm WarningJANClarke51 min
Nov 1, 12:54 PM CSTSevere Thunderstorm WarningJANJasper51 min
Nov 1, 1:06 PM CSTSevere Thunderstorm WarningJANCovington69 min
Nov 1, 1:28 PM CSTSevere Thunderstorm WarningJANClarke62 min
Nov 1, 1:28 PM CSTSevere Thunderstorm WarningJANJones62 min
Nov 1, 1:45 PM CSTTornado WarningJANClarke45 min
Nov 1, 1:57 PM CSTSevere Thunderstorm WarningJANForrest, Lamar48 min
Nov 1, 2:17 PM CSTSevere Thunderstorm WarningJANMarion43 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.