Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 203, NWS Jackson, MS

April 27, 1997Covington County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Apr 27, 1997, 5:25 AM CDT for Covington County, Mississippi. It was in force for 35 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
Apr 27, 1997, 5:25 AM CDT (10:25 UTC)
Expired
Apr 27, 1997, 6:00 AM CDT
In force
35 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Covington County, MS

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 27, 4:15 AM CDTTornado WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 10.4 hours before the alert went out and 91 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 1997-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 1997-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 194 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
2 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
533 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
194 m²/s²
0-3 km storm-relative helicity
324 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.

941 
WUUS1 KJAN 271027 RRA
SVRJAN
MSC031-271100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
525 AM CDT SUN APR 27 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  600 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL MISSISSIPPI
 
   ...COVINGTON COUNTY
 
AT 521 AM...RADAR INDICATED A SEVERE THUNDERSTORM 12 MILES WEST OF
COLLINS. THE STORM WAS MOVING TO THE NORTHEAST AT 40 MPH AND WILL MOVE
THROUGH THE MT OLIVE...COVINGTON AND SEMINARY COMMUNITIES BY 540 AM.
 
A TORNADO WATCH IS ALSO IN EFFECT.  REMEMBER SEVERE THUNDERSTORMS
CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.  REMAIN
CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
<
 
 
75

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 12:21 AM CDTSevere Thunderstorm WarningJANAdams39 min
Apr 27, 1:05 AM CDTSevere Thunderstorm WarningJANRankin40 min
Apr 27, 1:21 AM CDTSevere Thunderstorm WarningJANScott, Smith39 min
Apr 27, 2:00 AM CDTFlash Flood WarningJANAdams3 hr
Apr 27, 2:29 AM CDTSevere Thunderstorm WarningJANSimpson31 min
Apr 27, 2:32 AM CDTSevere Thunderstorm WarningJANCopiah43 min
Apr 27, 3:58 AM CDTSevere Thunderstorm WarningJANWashington47 min
Apr 27, 4:42 AM CDTSevere Thunderstorm WarningJANLawrence33 min
Apr 27, 4:48 AM CDTTornado WarningJANJefferson Davis, Marion42 min
Apr 27, 6:01 AM CDTSevere Thunderstorm WarningJANCovington, Jones44 min
Apr 27, 6:03 AM CDTSevere Thunderstorm WarningJANMarion42 min
Apr 27, 6:23 AM CDTTornado WarningJANMarion37 min
Apr 27, 6:44 AM CDTTornado WarningJANLamar46 min
Apr 27, 7:07 AM CDTTornado WarningJANForrest53 min
Apr 27, 7:48 AM CDTSevere Thunderstorm WarningJANJones27 min
Apr 27, 9:07 AM CDTFlash Flood WarningJANHinds2 hr
Apr 27, 11:42 AM CDTFlash Flood WarningJANJefferson Davis, Marion3 hr
Apr 27, 12:27 PM CDTSevere Thunderstorm WarningJANJones48 min
Apr 27, 1:00 PM CDTFlash Flood WarningJANLincoln3 hr
Apr 27, 2:56 PM CDTFlash Flood WarningJANLauderdale2 hr
Apr 27, 3:15 PM CDTFlash Flood WarningJANJasper, Newton, Smith105 min
Apr 27, 3:15 PM CDTFlash Flood WarningJANNeshoba105 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; the sounding from the Mesonet's radiosonde archive.