Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 370, NWS Jackson, MS

June 21, 1997Kemper County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Jun 21, 1997, 6:16 PM CDT for Kemper County, Mississippi. It was in force for 44 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 21, 1997, 6:16 PM CDT (23:16 UTC)
Expired
Jun 21, 1997, 7:00 PM CDT
In force
44 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Kemper County, MS

The radar

The Columbus AFB radar (KGWX), 130 km from the middle of the area, began a volume at 23:19 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 11.3 hours before the alert went out and 143 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 1997-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1771 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 1997-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 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
1771 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
571 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
60 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.

257 
WUUS1 KJAN 212317 RRA
SVRJAN
MSC069-220000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
616 PM CDT SAT JUN 21 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSISSIPPI
 
   ...KEMPER COUNTY
 
AT 615 PM...JACKSON DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3
MILES EAST OF DE KALB. THIS STORM WAS MOVING EAST AT 5 MPH AND WILL
MOVE NEAR SCOOBA AND ELECTRIC MILLS.
 
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
Jun 20, 7:03 PM CDTSevere Thunderstorm WarningJANLauderdale57 min
Jun 20, 7:15 PM CDTTornado WarningJANClarke45 min
Jun 20, 8:01 PM CDTSevere Thunderstorm WarningJANNoxubee44 min
Jun 20, 8:09 PM CDTSevere Thunderstorm WarningJANKemper51 min
Jun 20, 8:23 PM CDTSevere Thunderstorm WarningJANLauderdale52 min
Jun 20, 9:07 PM CDTFlash Flood WarningJANKemper, Lauderdale3 hr
Jun 20, 9:52 PM CDTSevere Thunderstorm WarningJANOktibbeha53 min
Jun 20, 10:17 PM CDTSevere Thunderstorm WarningJANChoctaw28 min
Jun 20, 10:42 PM CDTSevere Thunderstorm WarningJANChoctaw, Oktibbeha48 min
Jun 20, 11:37 PM CDTFlash Flood WarningJANChoctaw, Oktibbeha, Winston2 hr
Jun 21, 1:45 AM CDTFlash Flood WarningJANChoctaw3 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; radar from the NEXRAD Level II archive.