Alert archive / Arkansas / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 450, NWS Jackson, MS

July 22, 1997Chicot County, Arkansas; Washington County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jul 22, 1997, 7:29 PM CDT for Chicot County, Arkansas; Washington County, Mississippi. It was in force for 46 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
Jul 22, 1997, 7:29 PM CDT (00:29 UTC)
Expired
Jul 22, 1997, 8:15 PM CDT
In force
46 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Chicot County, AR, Washington County, MS

What was reported inside it

TimeReportWhereRemark
Jul 22, 7:45 PM CDTThunderstorm Wind 52Leland, MSSeveral power and cable lines were blown down.

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 00:00Z, 0.5 hours before the alert went out and 144 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 1997-07-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2944 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1997-07-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
2944 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1383 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
36 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.

886 
WUUS1 KJAN 230031 RRA
SVRJAN
ARC017-MSC151-230115-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
729 PM CDT TUE JUL 22 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  815 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST ARKANSAS
 
   ...NORTHERN CHICOT COUNTY
 
 
IN NORTHWEST MISSISSIPPI
 
   ...NORTHERN WASHINGTON COUNTY
 
AT 728 PM DOPPLER RADAR IN JACKSON INDICATED A CLUSTER OF SEVERE
THUNDERSTORMS BETWEEN LAKE VILLAGE AND LELAND WITH LITTLE MOVEMENT
INDICATED.
 
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.
<
 
65

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 6:03 PM CDTSevere Thunderstorm WarningJANAshley42 min
Jul 23, 6:36 PM CDTSevere Thunderstorm WarningJANAshley39 min
Jul 23, 4:49 PM CDTSevere Thunderstorm WarningJANRankin41 min
Jul 23, 5:03 PM CDTFlash Flood WarningJANLamar117 min
Jul 23, 5:53 PM CDTSevere Thunderstorm WarningJANRankin, Simpson, Smith37 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1997Severe 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.