Alert archive / Mississippi / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 21, NWS Jackson, MS

March 1, 1994Smith County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 1, 1994, 8:55 AM CST for Smith County, Mississippi. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Mar 1, 1994, 8:55 AM CST (14:55 UTC)
Expired
Mar 1, 1994, 9:30 AM CST
In force
35 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Smith County, MS

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 2.9 hours before the alert went out and 64 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 1994-03-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 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 1994-03-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 km3 km6 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
822 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
262 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 011454 RRA
SVRJAN
MSC129-011530-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
855 AM CST TUE MAR 1 1994
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  930 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN CENTRAL MISSISSIPPI
 
   ...SMITH COUNTY
 
AT 855 AM CST RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF
MIZE MISSISSIPPI MOVINGR EAST AT 40 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.
<

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 1, 7:27 AM CSTSevere Thunderstorm WarningJANCopiah33 min
Mar 1, 9:03 AM CSTSevere Thunderstorm WarningJANCovington27 min
Mar 1, 9:08 AM CSTSevere Thunderstorm WarningJANJasper, Jones67 min
Mar 1, 9:25 AM CSTSevere Thunderstorm WarningJANClarke50 min
Mar 1, 10:07 AM CSTSevere Thunderstorm WarningJANLauderdale53 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1994Every severe thunderstorm warning in 1994

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.