Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 21, NWS Jackson, MS

March 5, 1989Leake County, Mississippi

NWS Jackson, MS issued this severe thunderstorm warning at Mar 5, 1989, 3:56 AM CST for Leake County, Mississippi. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
Mar 5, 1989, 3:56 AM CST (09:56 UTC)
Expired
Mar 5, 1989, 4:30 AM CST
In force
34 min
Issued by
NWS Jackson, MS
Area
Whole counties

County Leake 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 00:00Z, 9.9 hours before the alert went out and 71 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 1989-03-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1843 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 00:00Z on 1989-03-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 239 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
1843 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
574 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
239 m²/s²
0-3 km storm-relative helicity
292 m²/s²
Significant tornado parameter
3.3
Supercell composite
15.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KJAN 050958
SVRJAN
MSC079-051030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE JACKSON MS
356 AM CST SUN MAR 5 1989
 
THE NATIONAL WEATHER SERVICE IN JACKSON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 AM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN CENTRAL MISSISSIPPI
          ...LEAKE
 
AT 355AM RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM IN LEAKE
COUNTY 5 MILES NORTHWEST OF WALNUT GROVE MOVING NORTHEAST AT
30 MPH TOWARD THE EDINBURG AREA.
 
 
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 CONDITIrONS.
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The office that day

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

IssuedProductOfficeCountiesLasted
Mar 4, 6:05 PM CSTTornado WarningJANHinds25 min
Mar 4, 6:15 PM CSTTornado WarningJANClaiborne15 min
Mar 4, 6:30 PM CSTTornado WarningJANHinds30 min
Mar 4, 6:56 PM CSTTornado WarningJANHinds34 min
Mar 4, 7:04 PM CSTTornado WarningJANMadison36 min
Mar 4, 7:26 PM CSTTornado WarningJANMadison34 min
Mar 4, 7:51 PM CSTSevere Thunderstorm WarningJANHinds39 min
Mar 4, 8:16 PM CSTTornado WarningJANIssaquena, Warren29 min
Mar 4, 8:29 PM CSTTornado WarningJANAttala, Leake31 min
Mar 4, 8:41 PM CSTTornado WarningJANWarren34 min
Mar 4, 8:54 PM CSTTornado WarningJANYazoo36 min
Mar 4, 9:03 PM CSTSevere Thunderstorm WarningJANAttala27 min
Mar 4, 9:26 PM CSTSevere Thunderstorm WarningJANChoctaw34 min
Mar 4, 9:35 PM CSTFlash Flood WarningJANYazoo55 min
Mar 4, 9:35 PM CSTSevere Thunderstorm WarningJANYazoo55 min
Mar 4, 10:25 PM CSTSevere Thunderstorm WarningJANAttala35 min
Mar 4, 10:49 PM CSTTornado WarningJANAttala, Choctaw26 min
Mar 4, 11:05 PM CSTTornado WarningJANWebster25 min
Mar 5, 5:00 AM CSTTornado WarningJANNeshoba45 min
Mar 5, 5:39 AM CSTTornado WarningJANCopiah, Simpson36 min
Mar 5, 5:42 AM CSTTornado WarningJANNeshoba48 min
Mar 5, 7:09 AM CSTSevere Thunderstorm WarningJANWalthall36 min
Mar 5, 7:41 AM CSTSevere Thunderstorm WarningJANMarion34 min
Mar 5, 7:52 AM CSTTornado WarningJANJefferson Davis, Marion38 min
Mar 5, 8:01 AM CSTTornado WarningJANCovington44 min
Mar 5, 8:31 AM CSTTornado WarningJANSmith29 min
Mar 5, 8:43 AM CSTTornado WarningJANJasper32 min
Mar 5, 9:08 AM CSTTornado WarningJANJones52 min
Mar 5, 9:16 AM CSTTornado WarningJANJasper29 min
Mar 5, 9:36 AM CSTTornado WarningJANSimpson, Smith39 min
Mar 5, 9:45 AM CSTSevere Thunderstorm WarningJANNewton45 min
Mar 5, 9:57 AM CSTSevere Thunderstorm WarningJANKemper48 min
Mar 5, 10:01 AM CSTTornado WarningJANScott29 min
Mar 5, 10:07 AM CSTSevere Thunderstorm WarningJANLauderdale53 min
Mar 5, 10:26 AM CSTSevere Thunderstorm WarningJANAttala34 min
Mar 5, 12:12 PM CSTFlash Flood WarningJANLauderdale4 hr

Nearby

Severe Thunderstorm Warnings in Mississippi, 1989Every severe thunderstorm warning in 1989

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.