Alert archive / Mississippi / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 21, NWS Jackson, MS

February 11, 1993Attala County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Feb 11, 1993, 7:03 PM CST for Attala County, Mississippi. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Feb 11, 1993, 7:03 PM CST (01:03 UTC)
Expired
Feb 11, 1993, 7:30 PM CST
In force
27 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Attala County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.1 hours before the alert went out and 97 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 1993-02-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 625 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 1993-02-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 45 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
625 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
1629 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KJAN 120104
SVRJAN
MSC007-120130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
703 PM CST THU FEB 11 1993
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN CENTRAL MISSISSIPPI
 
   ...ATTALA COUNTY
 
AT 7 PM CST SEVERE THUNDERSTORM PRODUCING LARGE HAIL WAS ACROSS ATTALA
COUNTY MOVING EAST AT 25 MILES AN HOUR.
 
 
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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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 11, 6:47 PM CSTSevere Thunderstorm WarningJANLeake43 min
Feb 11, 7:16 PM CSTSevere Thunderstorm WarningJANPike, Walthall44 min
Feb 11, 7:28 PM CSTSevere Thunderstorm WarningJANChoctaw, Webster47 min
Feb 11, 7:29 PM CSTSevere Thunderstorm WarningJANLauderdale61 min
Feb 11, 7:34 PM CSTSevere Thunderstorm WarningJANNeshoba56 min
Feb 11, 7:35 PM CSTSevere Thunderstorm WarningJANAttala, Leake25 min
Feb 11, 7:44 PM CSTSevere Thunderstorm WarningJANClarke61 min
Feb 11, 7:57 PM CSTSevere Thunderstorm WarningJANWinston63 min
Feb 11, 8:18 PM CSTSevere Thunderstorm WarningJANKemper, Noxubee57 min
Feb 11, 8:41 PM CSTSevere Thunderstorm WarningJANClarke34 min
Feb 11, 9:07 PM CSTSevere Thunderstorm WarningJANIssaquena, Warren38 min
Feb 11, 9:20 PM CSTSevere Thunderstorm WarningJANKemper25 min
Feb 11, 9:50 PM CSTSevere Thunderstorm WarningJANWarren, Yazoo25 min
Feb 11, 10:32 PM CSTSevere Thunderstorm WarningJANYazoo28 min
Feb 12, 1:03 AM CSTSevere Thunderstorm WarningJANNoxubee42 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1993Every severe thunderstorm warning in 1993

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.