Alert archive / Arkansas / Tornado Warnings in 1998

Tornado Warning 51, NWS Tulsa, OK

June 18, 1998Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this tornado warning at Jun 18, 1998, 9:42 PM CDT for Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas. It was in force for 48 min. 4 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
Jun 18, 1998, 9:42 PM CDT (02:42 UTC)
Expired
Jun 18, 1998, 10:30 PM CDT
In force
48 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Crawford County, AR, Sebastian County, AR, Sequoyah County, OK

What was reported inside it

TimeReportWhereRemark
Jun 18, 9:45 PM CDTThunderstorm WindMoffett, OKLarge trees were blown down in Moffett
Jun 18, 9:55 PM CDTHail 0.88Greenwood, AR
Jun 18, 10:03 PM CDTHail 0.75(Fsm)Ft Smith Muni A, AR
Jun 18, 10:18 PM CDTThunderstorm Wind 52Hackett, AR

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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 18, 4:15 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.7 hours before the alert went out and 173 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, Springfield, MO at 00:00Z on 1998-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3542 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 1998-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 126 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
3542 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1049 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
126 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
2.1
Supercell composite
12.4

Open this sounding in Storm Lab

The text

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

514 
WFUS54 KTSA 190243 RRA
TORTUL
ARC033-131-OKC135-190330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
942 PM CDT THU JUN 18 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...

  SOUTHERN CRAWFORD COUNTY IN NORTHWESTERN ARKANSAS
  NORTHERN SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS
  SOUTHEASTERN SEQUOYAH COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 1030 PM CDT

* AT 937 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 3 MILES NORTHWEST OF FORT
  SMITH...MOVING EAST-SOUTHEAST AT 20 MPH. WIND GUSTS NEAR 70 MPH
  WILL ALSO BE POSSIBLE.

* THE FOLLOWING LOCATIONS ARE NEAR THE PATH OF THIS TORNADO...
  FORT SMITH
  VAN BUREN
  MOFFET

NIGHTTIME TORNADOES ARE ESPECIALLY DANGEROUS - TAKE SHELTER NOW DO
NOT WAIT UNTIL YOU SEE OR HEAR IT COMING - IT MAY BE TOO LATE TO
GET TO A SAFE PLACE.

THE SAFEST PLACE IN A TORNADO IS BELOW GROUND. IF A BASEMENT OR
STORM CELLAR IS NOT AVAILABLE...GO TO A SMALL INTERIOR ROOM ON THE
LOWEST FLOOR. GET UNDER SOMETHING STURDY AND USE BLANKETS AND
PILLOWS TO PROTECT YOUR HEAD AND BODY FROM FLYING DEBRIS. AVOID
WINDOWS AND LARGE ROOMS. ABANDON MOBILE HOMES AND AUTOMOBILES FOR
MORE SUBSTANTIAL SHELTER. AS A LAST RESORT TAKE COVER IN A DITCH.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 7:11 PM CDTSevere Thunderstorm WarningTSACherokee64 min
Jun 18, 7:15 PM CDTTornado WarningTSAMuskogee, Wagoner30 min
Jun 18, 7:23 PM CDTSevere Thunderstorm WarningTSAOttawa37 min
Jun 18, 7:33 PM CDTTornado WarningTSACherokee42 min
Jun 18, 7:36 PM CDTTornado WarningTSAMcIntosh, Okmulgee39 min
Jun 18, 7:44 PM CDTSevere Thunderstorm WarningTSAMuskogee61 min
Jun 18, 7:49 PM CDTSevere Thunderstorm WarningTSAPittsburg56 min
Jun 18, 7:54 PM CDTSevere Thunderstorm WarningTSAOkfuskee51 min
Jun 18, 8:14 PM CDTTornado WarningTSAMcIntosh46 min
Jun 18, 8:19 PM CDTSevere Thunderstorm WarningTSALatimer56 min
Jun 18, 8:40 PM CDTTornado WarningTSAHaskell, Pittsburg50 min
Jun 18, 8:53 PM CDTTornado WarningTSALatimer37 min
Jun 18, 9:05 PM CDTSevere Thunderstorm WarningTSAHaskell, Pittsburg55 min
Jun 18, 9:08 PM CDTSevere Thunderstorm WarningTSASequoyah37 min
Jun 18, 9:12 PM CDTSevere Thunderstorm WarningTSALeFlore, Pushmataha63 min
Jun 18, 9:31 PM CDTTornado WarningTSALatimer44 min
Jun 18, 9:34 PM CDTFlash Flood WarningTSALatimer2 hr
Jun 18, 10:07 PM CDTTornado WarningTSALeFlore38 min
Jun 18, 10:14 PM CDTSevere Thunderstorm WarningTSAPushmataha61 min
Jun 18, 10:20 PM CDTSevere Thunderstorm WarningTSAPittsburg40 min
Jun 18, 10:22 PM CDTSevere Thunderstorm WarningTSALatimer38 min
Jun 18, 10:25 PM CDTTornado WarningTSAPittsburg50 min
Jun 18, 10:56 PM CDTTornado WarningTSALatimer49 min
Jun 18, 11:17 PM CDTSevere Thunderstorm WarningTSAPittsburg43 min
Jun 18, 11:23 PM CDTSevere Thunderstorm WarningTSAOkmulgee37 min
Jun 18, 11:24 PM CDTTornado WarningTSAPushmataha51 min
Jun 18, 11:26 PM CDTSevere Thunderstorm WarningTSAMcIntosh49 min
Jun 18, 11:41 PM CDTSevere Thunderstorm WarningTSALeFlore64 min
Jun 18, 11:50 PM CDTFlash Flood WarningTSALatimer100 min
Jun 18, 11:55 PM CDTSevere Thunderstorm WarningTSALatimer35 min
Jun 19, 12:07 AM CDTSevere Thunderstorm WarningTSAHaskell53 min
Jun 19, 12:44 AM CDTSevere Thunderstorm WarningTSALeFlore46 min
Jun 19, 1:06 AM CDTSevere Thunderstorm WarningTSAHaskell54 min
Jun 19, 1:29 AM CDTSevere Thunderstorm WarningTSALatimer, Pittsburg61 min
Jun 19, 1:59 AM CDTSevere Thunderstorm WarningTSAHaskell31 min
Jun 19, 2:11 AM CDTSevere Thunderstorm WarningTSALeFlore64 min
Jun 18, 9:19 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian56 min

Nearby

Tornado Warnings in Arkansas, 1998Tornado Warnings in Oklahoma, 1998Every tornado warning in 1998Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.