Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 87, NWS Memphis, TN

April 14, 1998Cross County, Arkansas

NWS Memphis, TN issued this severe thunderstorm warning at Apr 14, 1998, 12:22 AM CDT for Cross County, Arkansas. It was in force for 48 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 14, 1998, 12:22 AM CDT (05:22 UTC)
Expired: Apr 14, 1998, 1:10 AM CDT
In force: 48 min
Issued by: NWS Memphis, TN
Area: Whole counties

County Cross County, AR

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 5.4 hours before the alert went out and 91 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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.

579 
WUUS1 KMEM 140524 RRA
SVRMEM
ARC037-140610-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MEMPHIS TN
1222 AM CDT TUE APR 14 1998

THE NATIONAL WEATHER SERVICE IN MEMPHIS TN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 110 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN NORTHEASTERN ARKANSAS

   ...CROSS COUNTY

AT 1220 AM CDT... DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH
DAMAGING WINDS FROM CHERRY VALLEY TO NORTHWEST OF WYNNE MOVING TO
THE SOUTHEAST AT 35 MPH. WINDS TO 70 MPH AND A LARGE TREE DOWN WERE
REPORTED NEAR CHERRY VALLEY AT 1214 AM.


.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 OUTSIDE SHOULD MOVE TO A PLACE OF SAFETY...
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

Local storm report, Apr 13, 7:45 PM CDT, 4 hours 37 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.

Issued	Product	Office	Counties	Lasted
Apr 13, 7:02 PM CDT	Tornado Warning	MEG	Clay	58 min
Apr 13, 7:56 PM CDT	Tornado Warning	MEG	Clay	24 min
Apr 13, 10:02 PM CDT	Severe Thunderstorm Warning	MEG	Lawrence	28 min
Apr 13, 10:15 PM CDT	Severe Thunderstorm Warning	MEG	Greene	45 min
Apr 13, 11:25 PM CDT	Severe Thunderstorm Warning	MEG	Cross	50 min
Apr 13, 11:30 PM CDT	Severe Thunderstorm Warning	MEG	Mississippi	50 min
Apr 14, 12:48 AM CDT	Severe Thunderstorm Warning	MEG	Crittenden	37 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1998 Every 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.