Alert archive / Mississippi / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 79, NWS Jackson, MS

February 21, 1997Rankin County, Simpson County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 21, 1997, 3:03 AM CST for Rankin County, Simpson County, Mississippi. It was in force for 42 min. 6 reports 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
Feb 21, 1997, 3:03 AM CST (09:03 UTC)
Expired
Feb 21, 1997, 3:45 AM CST
In force
42 min
Issued by
NWS Jackson, MS
Area
Whole counties

Counties Rankin County, MS, Simpson County, MS

What was reported inside it

TimeReportWhereRemark
Feb 21, 3:20 AM CSTThunderstorm WindSand Hill, MS
Feb 21, 3:30 AM CSTThunderstorm WindPearl, MS
Feb 21, 3:30 AM CSTThunderstorm Wind 61Brandon, MS
Feb 21, 3:30 AM CSTThunderstorm WindBrandon, MS
Feb 21, 3:30 AM CSTThunderstorm WindRichland, MS
Feb 21, 3:30 AM CSTThunderstorm WindD Lo, 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 watch it was issued in

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

IssuedProductOfficeLasted
Feb 20, 11:45 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 9.1 hours before the alert went out and 29 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 1997-02-21Temperature 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 00:00Z on 1997-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 156 square meters per square second.1939587897Sfc1 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
1491 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
156 m²/s²
0-3 km storm-relative helicity
316 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.

000 
TTAA00 KJAN 210904 RRA
SVRJAN
MSC121-127-210945-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
303 AM CST FRI FEB 21 1997
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  345 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MISSISSIPPI
 
   ...RANKIN COUNTY...SIMPSON COUNTY
 
AT 303 AM RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS EXTENDING FROM
CLINTON TO HAZELHURST MOVING NORTHEAST NEAR 50 MPH. THIS LINE WILL MOVE
THROUGH BRANDON AND MENDENHALL BY 330 AM.
 
DAMAGING WINDS IN EXCESS OF 70 MPH WINDS ARE LIKELY WITH THESE STORMS.
 
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.
<
68

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 1:34 AM CSTSevere Thunderstorm WarningJANAdams41 min
Feb 21, 1:55 AM CSTSevere Thunderstorm WarningJANFranklin, Jefferson65 min
Feb 21, 2:01 AM CSTSevere Thunderstorm WarningJANClaiborne59 min
Feb 21, 2:05 AM CSTSevere Thunderstorm WarningJANSunflower40 min
Feb 21, 2:13 AM CSTSevere Thunderstorm WarningJANWarren47 min
Feb 21, 2:29 AM CSTSevere Thunderstorm WarningJANCopiah, Hinds61 min
Feb 21, 2:34 AM CSTSevere Thunderstorm WarningJANLincoln56 min
Feb 21, 2:48 AM CSTSevere Thunderstorm WarningJANMadison, Yazoo57 min
Feb 21, 3:08 AM CSTSevere Thunderstorm WarningJANHolmes52 min
Feb 21, 3:21 AM CSTSevere Thunderstorm WarningJANCarroll54 min
Feb 21, 3:34 AM CSTSevere Thunderstorm WarningJANScott56 min
Feb 21, 3:46 AM CSTTornado WarningJANScott44 min
Feb 21, 3:55 AM CSTSevere Thunderstorm WarningJANAttala, Leake, Montgomery65 min
Feb 21, 4:05 AM CSTTornado WarningJANLeake40 min
Feb 21, 4:14 AM CSTSevere Thunderstorm WarningJANChoctaw, Webster46 min
Feb 21, 4:17 AM CSTSevere Thunderstorm WarningJANSmith43 min
Feb 21, 4:20 AM CSTTornado WarningJANNeshoba40 min
Feb 21, 4:30 AM CSTSevere Thunderstorm WarningJANWinston45 min
Feb 21, 4:34 AM CSTSevere Thunderstorm WarningJANNewton41 min
Feb 21, 4:52 AM CSTSevere Thunderstorm WarningJANOktibbeha38 min
Feb 21, 4:57 AM CSTSevere Thunderstorm WarningJANKemper, Noxubee48 min
Feb 21, 5:29 AM CSTSevere Thunderstorm WarningJANJefferson Davis31 min
Feb 21, 5:38 AM CSTSevere Thunderstorm WarningJANMarion52 min
Feb 21, 5:43 AM CSTSevere Thunderstorm WarningJANCovington, Smith47 min
Feb 21, 6:12 AM CSTSevere Thunderstorm WarningJANJasper48 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.