Alert archive / Mississippi / Tornado Warnings in 1990

Tornado Warning 1, NWS Jackson, MS

February 2, 1990Attala County, Mississippi

NWS Jackson, MS issued this tornado warning at Feb 2, 1990, 4:41 PM CST for Attala County, Mississippi. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Feb 2, 1990, 4:41 PM CST (22:41 UTC)
Expired
Feb 2, 1990, 5:15 PM CST
In force
34 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Attala County, MS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.7 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 12:00Z on 1990-02-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 1990-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 232 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
1 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
693 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
232 m²/s²
0-3 km storm-relative helicity
267 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 022243
TORJAN
MSC007-022315-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE JACKSON MS
441 PM CST FRI FEB 2 1990
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  515 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN CENTRAL MISSISSIPPI
          ...NORTHEASTERN ATTALA
 
AT 440 PM CST...A TORNADO WAS SIGHTED BY THE PUBLIC ABOUT 5 MILES
NORTH OF KOSCIUSKO. THIS STORM WAS MOVING TO THE NORTHEAST AT 25 MILES
AN HOUR.
 
IF YOU ARE OUTSIDE...SEEK SHELTER IN A STURDY BUILDING.  AS A
LAST RESORT...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER
YOUR HEAD WITH YOUR HANDS.
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Nearby

Tornado Warnings in Mississippi, 1990Every tornado warning in 1990Tornadoes in 1990

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.