Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 346, NWS Tulsa, OK

June 19, 1998LeFlore County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 19, 1998, 12:44 AM CDT for LeFlore County, Oklahoma. It was in force for 46 min. 1 report 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 19, 1998, 12:44 AM CDT (05:44 UTC)
Expired
Jun 19, 1998, 1:30 AM CDT
In force
46 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County LeFlore County, OK

What was reported inside it

TimeReportWhereRemark
Jun 19, 1:15 AM CDTThunderstorm WindHodgen, OKTrees were blown down in Hodgen.

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 nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.7 hours before the alert went out and 237 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°0°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.

520 
WUUS54 KTSA 190544 RRA
SVRTUL
OKC079-190630-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1244 AM CDT FRI JUN 19 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  SOUTHERN LE FLORE COUNTY IN SOUTHEASTERN OKLAHOMA

* UNTIL 130 AM CDT

* AT 1242 AM...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE
  THUNDERSTORM HAD REINTENSIFIED 6 MILES NORTHEAST OF TALIHINA...
  MOVING EAST AT 20 MPH.

* SOME LOCATIONS AFFECTED INCLUDE...
  HEAVENER

  HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE
  EXPECTED IN THE WARNED AREA.

BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

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.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 18, 8:00 PM CDT, 4 hours 44 minutes earlier.

Area forecast discussion, Jun 18, 8:00 PM CDT, 4 hours 44 minutes before
FPUS3 KTUL 190057
AFDTUL

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
800 PM CDT THU JUN 18 1998

WILL UPDATE ZONES SHORTLY TO ADJUST 1ST PERIOD POPS FOR CURRENT
TRENDS. COLD FRONT/DRYLINE NOW STARTING TO RETREAT SLIGHTLY BACK TO
THE WEST SO WILL ALSO ADJUST WINDS AND MIN TEMPS TONIGHT FOR THESE
TRENDS. ALSO ADDED SOME CLOUDS WHERE POPS ARE MENTIONED FRIDAY NIGHT.
HAVE NOT LOOKED AT MUCH ELSE SO WILL SAVE ANY OTHER CHANGES UNTIL
LATER.

.TUL...
OK...NONE.
AR...NONE.

PLATE

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, 9:42 PM CDTTornado WarningTSASequoyah48 min
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, 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

Nearby

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