Alert archive / Mississippi / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 13, NWS Memphis, TN

March 30, 1989DeSoto County, Mississippi; Shelby County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Mar 30, 1989, 6:49 PM CST for DeSoto County, Mississippi; Shelby County, Tennessee. It was in force for 41 min. 2 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
Mar 30, 1989, 6:49 PM CST (00:49 UTC)
Expired
Mar 30, 1989, 7:30 PM CST
In force
41 min
Issued by
NWS Memphis, TN
Area
Whole counties

Counties DeSoto County, MS, Shelby County, TN

The radar

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

What was reported inside it

TimeReportWhereRemark
Mar 30, 7:10 PM CSTHail 0.75De Soto, MS
Mar 30, 7:25 PM CSTHail 0.75Shelby, TN

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 0.8 hours before the alert went out and 22 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, Little Rock, AR at 00:00Z on 1989-03-31Temperature 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, Little Rock, AR at 00:00Z on 1989-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3589 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
126 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 KMEM 310049
SVRMEM
MSC033-TNC157-310130-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
649 PM CST THU MAR 30 1989
 
THE NATIONAL WEATHER SERVICE IN MEMPHIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  730 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHWEST MISSISSIPPI
          ...DESOTO
IN WEST TENNESSEE
          ...SHELBY
 
AT 645 PM WEATHER RADAR INDICATED THE SEVERE THUNDERSTORM WHICH HAD
TRACKED ACROSS EAST ARKANSAS WAS APPROACHING THE MISSISSIPPI RIVER AND
WILL MOVE INTO SHELBY COUNTY TENNESSEE AND DE SOTO COUNTY MISSISSIPPI
BEFORE 700 PM. THIS THUNDERSTORM WILL BE CAPABLE OF PRODUCING BOTH
DAMAGING HAIL AND DESTRUCTIVE WIND AS IT TRACKS INTO THE GREATER
MEMPHIS AREA BETWEEN 655 PM AND 715 PM THIS EVENING.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
 
THIS IS A DANGEROUS STORM.  IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING.  PEOPLE OUTSI6DE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 30, 5:32 PM CST, 1 hour 17 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  MEMPHIS TN
530 PM CST THU MAR 30 1989

 ...SEVERE THUNDERSTORM WATCH NUMBER 70 CONTINUES IN EFFECT ACROSS
MUCH OF ARKANSAS ALONG WITH EXTREME WEST TENNESSEE AND EXTREME NORTH
WEST MISSISSSIPPI...

AT 525 PM WEATHER RADAR CONTINUED TO DETECT VERY STRONG THUNDERSTORMS
OVER CENTRAL AND NORTHEAST ARKANSAS...ROUGHLY BETWEEN LONOKE AND
CORNING.  THE STRONGEST WERE INDICATED TO BE NEAR DES ARC...ANOTHER
JUST NORTH OF CORNING...AND SOUTHWEST OF DELAPLANE.  THESE STORMS
WERE MOVING TOWARD THE EAST-NORTHEAST AT 45 MPH.

LARGE HAIL WAS BEEN REPORTED WITH THE MORE INTENSE THUNDERSTORMS AS
THEY TRACKED OVER CENTRAL AND NORTH ARKANSAS EARLIER THIS EVENING.

WEATHER CONDITIONS APPEAR TO FAVOR FURTHER INTENSIFICATION DURING THE
NEXT HOUR OR SO.
STAY TUNED TO THIS STATION FOR LATER UPDATES ON THIS POTENTIALLY
DESTRUCTIVE WEATHER SITUATION.

The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 30, 7:42 PM CSTSevere Thunderstorm WarningMEGDeSoto, Marshall48 min
Mar 30, 7:58 PM CSTTornado WarningMEGCoahoma17 min
Mar 30, 8:09 PM CSTSevere Thunderstorm WarningMEGQuitman36 min
Mar 30, 8:23 PM CSTSevere Thunderstorm WarningMEGBenton37 min
Mar 30, 8:26 PM CSTSevere Thunderstorm WarningMEGPanola49 min
Mar 30, 8:50 PM CSTSevere Thunderstorm WarningMEGLafayette20 min
Mar 30, 9:20 PM CSTSevere Thunderstorm WarningMEGUnion25 min
Mar 30, 9:50 PM CSTTornado WarningMEGLee, Pontotoc25 min
Mar 30, 10:15 PM CSTSevere Thunderstorm WarningMEGItawamba30 min

Nearby

Severe Thunderstorm Warnings in Mississippi, 1989Severe Thunderstorm Warnings in Tennessee, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.