Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 264, NWS Tulsa, OK

June 7, 1998Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 7, 1998, 9:46 PM CDT for Osage County, Oklahoma. It was in force for 29 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
Jun 7, 1998, 9:46 PM CDT (02:46 UTC)
Expired
Jun 7, 1998, 10:15 PM CDT
In force
29 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Osage County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 02:46 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.8 hours before the alert went out and 181 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, Norman, OK at 00:00Z on 1998-06-08Temperature 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, Norman, OK at 00:00Z on 1998-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 square meters per square second.1939587897Sfc1 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
1696 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
257 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

745 
WUUS54 KTSA 080247 RRA
SVRTUL
OKC113-080315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
946 PM CDT SUN JUN 7 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  OSAGE COUNTY IN NORTHEASTERN OKLAHOMA

* UNTIL 1015 PM CDT

* AT 945 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM 2 MILES WEST OF PAWHUSKA...MOVING EAST AT 35
  MPH.

* SOME LOCATIONS AFFECTED INCLUDE...
  PAWHUSKA
  BARNSDALL

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


BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

WHEN THUNDERSTORMS APPROACH...TAKE COVER INSIDE A STURDY BUILDING.
STAY AWAY FROM WINDOWS. TO PROTECT YOURSELF FROM LIGHTNING STAY OFF
THE PHONE AND DONT USE HAND HELD ELECTRICAL APPLIANCES. MOTORISTS
SHOULD NEVER DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.

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 7, 9:36 PM CDT, 10 minutes earlier.

Area forecast discussion, Jun 7, 9:36 PM CDT, 10 minutes before
FPUS3 KTUL 080237
AFDTUL

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
936 PM CDT SUN JUN 7 1998

UPDATED ZONES ALREADY SENT. CLUSTER OF STORMS THAT ORIGINATED VCNTY
OKLA PANHANDLE HAD MOVED INTO NRN ZONES THIS EVE. STORMS SHUD GRADLY
WEAKEN AS THEY MOVE AWAY FROM BETTER MSTR SUPPLY...BUT ACTIVITY CUD
HOLD TOGETHER WELL AFTER MIDNITE AS STRENGTHENING LO LVL JET AND WAA
AID LIFT AHEAD OF THE CLUSTER. IN THE UPDATE...I RAISED POPS
CONSIDERABLY ACRS THE COUNTIES THAT BORDER KS AND ALSO ADDED POPS
INTO CNTRL PARTS OF FCST AREA.

ALSO PUT IN SOME LO POPS IN ZONES NEAR THE RED RIVER TO ACCT FOR
SCTD TSRA IN NRN TX/EXTRM SRN OKLA MOVG EWD.

NO CHGS BEYOND 1ST PERIOD.

FCSTID = 9
TUL   64  80  68  83 /  30  40  30  30
FSM   60  80  65  85 /  10  30  30  30
MLC   64  82  68  85 /  10  30  30  30
BVO   62  80  68  83 /  50  40  30  30
FYV   58  78  65  81 /  20  30  30  30
IDB   60  82  65  85 /  30  20  20  20
BYV   58  78  65  81 /  20  30  30  30
MIO   61  78  67  82 /  40  40  30  30
MKO   63  80  68  84 /  20  40  30  30
F10   64  80  68  83 /  30  40  30  30
HHW   60  82  65  85 /  30  20  20  20

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 7:13 AM CDTSevere Thunderstorm WarningTSAMayes, Rogers, Wagoner47 min
Jun 8, 7:47 AM CDTSevere Thunderstorm WarningTSARogers, Tulsa43 min
Jun 8, 9:49 AM CDTSevere Thunderstorm WarningTSACreek41 min
Jun 8, 9:58 AM CDTSevere Thunderstorm WarningTSAAdair32 min
Jun 8, 10:22 AM CDTSevere Thunderstorm WarningTSAOkfuskee38 min
Jun 8, 10:30 AM CDTSevere Thunderstorm WarningTSATulsa45 min
Jun 8, 10:49 AM CDTSevere Thunderstorm WarningTSAWagoner41 min
Jun 8, 10:52 AM CDTSevere Thunderstorm WarningTSAMuskogee, Sequoyah38 min
Jun 8, 10:52 AM CDTSevere Thunderstorm WarningTSAMcIntosh38 min
Jun 8, 5:20 PM CDTTornado WarningTSAOsage70 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.