Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 288, NWS Jackson, MS

May 23, 1997Copiah County, Lawrence County, Simpson County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at May 23, 1997, 3:38 PM CDT for Copiah County, Lawrence County, Simpson County, Mississippi. It was in force for 52 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
May 23, 1997, 3:38 PM CDT (20:38 UTC)
Expired
May 23, 1997, 4:30 PM CDT
In force
52 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Copiah County, MS, Lawrence County, MS, Simpson County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 8.6 hours before the alert went out and 61 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 1997-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 1997-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1001 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
47 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.

988 
WUUS1 KJAN 232039 RRA
SVRJAN
MSC029-127-077-232130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
338 PM CDT FRI MAY 23 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MISSISSIPPI
 
   ...SOUTHERN COPIAH COUNTY...SOUTHERN SIMPSON COUNTY
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...NORTHERN LAWRENCE COUNTY
 
AT 335 PM RADAR INDICATED SEVERE THUNDERSTORMS IN LAWRENCE COUTNY NEAR
OMA MOVING NORTH AT 20 MPH AND WILL FOLLOW THE PEARL RIVER INTO
SOUTHEAST COPIAH AND SOUTHWEST SIMPSON COUNTY DURING THE NEXT 45
MINUTES. ONE INCH HAIL IS POSSIBLE WITH THESE STORMS.
 
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.
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What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 23, 9:59 AM CDT, 5 hours 39 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-240400-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1000 AM CDT FRI MAY 23 1997

A STATIONARY FRONT ALONG THE GULF COAST IS EXPECTED TO BEGIN MOVING
SLOWLY NORTH LATER THIS MORNING AS A WARM FRONT...THIS COUPLED WITH
A VERY MOIST AND UNSTABLE MASS OVER THE REGION WILL ENHANCE THE
DEVELOPMENT OF SHOWERS AND THUNDERSTORMS THROUGH TONIGHT.

LOCALLY HEAVY RAINdFALL WILL BE THE MAIN THREAT FROM ANY THUNDERSTORM
ACTIVITY THROUGH TONIGHT.

ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGEMENT AND HAM RADIO
OPERATORS IS NOT EXPECTED THROUGH TONIGHT.
Special weather statement, May 23, 10:00 AM CDT, 5 hours 38 minutes before
ARZ074-075-LAZ007>009-015-016-023>026-MSZ018-019-025>029-032>066-072>
074-240400-

AREA THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE JACKSON MS
1000 AM CDT FRI MAY 23 1997

A STATIONARY FRONT ALONG THE GULF COAST IS EXPECTED TO BEGIN MOVING
SLOWLY NORTH LATER THIS MORNING AS A WARM FRONT...THIS COUPLED WITH
A VERY MOIST AND UNSTABLE MASS OVER THE REGION WILL ENHANCE THE
DEVELOPMENT OF SHOWERS AND THUNDERSTORMS THROUGH TONIGHT.

LOCALLY HEAVY RAINFALL WILL BE THE MAIN THREAT FROM ANY THUNDERSTORM
ACTIVITY THROUGH TONIGHT.

ACTIVATION OF STORM SPOTTERS...EMERGENCY MANAGEMENT AND HAM RADIO
OPERATORS IS NOT EXPECTED THROUGH TONIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 3:10 PM CDTSevere Thunderstorm WarningJANLamar35 min
May 23, 5:11 PM CDTFlash Flood WarningJANHinds3 hr

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.