Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 85, NWS Memphis, TN

April 13, 1998Mississippi County, Arkansas; Pemiscot County, Missouri

NWS Memphis, TN issued this severe thunderstorm warning at Apr 13, 1998, 11:30 PM CDT for Mississippi County, Arkansas; Pemiscot County, Missouri. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 13, 1998, 11:30 PM CDT (04:30 UTC)
Expired
Apr 14, 1998, 12:20 AM CDT
In force
50 min
Issued by
NWS Memphis, TN
Area
Whole counties

Counties Mississippi County, AR, Pemiscot County, MO

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 4.5 hours before the alert went out and 129 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 1998-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 652 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, Little Rock, AR at 00:00Z on 1998-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 square meters per square second.1939587897117Sfc1 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
652 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
898 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
223 m²/s²
Significant tornado parameter
0.8
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

382 
WUUS1 KMEM 140432 RRA
SVRMEM
ARC093-MOC155-140520-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1130 PM CDT MON APR 13 1998


THE NATIONAL WEATHER SERVICE IN MEMPHIS TN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1220 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTHEASTERN ARKANSAS

   ...NORTHERN MISSISSIPPI COUNTY

IN SOUTHEASTERN MISSOURI

   ...SOUTHERN PEMISCOT COUNTY


AT 1128 PM CDT... DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS WITH LARGE HAIL AND DAMAGING WINDS FROM DEERING TO 5
MILES WEST OF DENTON TO NORTH OF LEACHVILLE. THIS LINE WAS MOVING
SOUTHEAST AT 35 MPH AND WILL AFFECT STEELE..BLYTHEVILLE AND MANILA
AROUND 1145 PM.


.WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR
ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS
PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.

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

Local storm report, Apr 13, 7:45 PM CDT, 3 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEMPHIS TENNESSEE
745 PM CDT MON APR 13 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0730 PM    PALATKA                   AR   1.75 INCH HAIL
04/13/98   CLAY                           HIGHWAY PATROL REPORTED
                                          GOLFBALL SIZE HAIL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 7:02 PM CDTTornado WarningMEGClay58 min
Apr 13, 7:56 PM CDTTornado WarningMEGClay24 min
Apr 13, 10:02 PM CDTSevere Thunderstorm WarningMEGLawrence28 min
Apr 13, 10:15 PM CDTSevere Thunderstorm WarningMEGGreene45 min
Apr 13, 11:25 PM CDTSevere Thunderstorm WarningMEGCross50 min
Apr 14, 12:22 AM CDTSevere Thunderstorm WarningMEGCross48 min
Apr 14, 12:48 AM CDTSevere Thunderstorm WarningMEGCrittenden37 min
Apr 13, 7:59 PM CDTTornado WarningMEGDunklin31 min
Apr 13, 8:20 PM CDTTornado WarningMEGPemiscot40 min
Apr 13, 10:39 PM CDTSevere Thunderstorm WarningMEGPemiscot51 min
Apr 13, 11:04 PM CDTSevere Thunderstorm WarningMEGDunklin41 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1998Severe Thunderstorm Warnings in Missouri, 1998Every severe thunderstorm warning in 1998

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.