Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 342, NWS Tulsa, OK

June 18, 1998McIntosh County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jun 18, 1998, 11:26 PM CDT for McIntosh County, Oklahoma. It was in force for 49 min. 2 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, 11:26 PM CDT (04:26 UTC)
Expired
Jun 19, 1998, 12:15 AM CDT
In force
49 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County McIntosh County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 04:26 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.

What was reported inside it

TimeReportWhereRemark
Jun 18, 11:35 PM CDTHail 0.88Eufaula, OK
Jun 18, 11:49 PM CDTHail 1.25Eufaula, OK

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

Norman, OK (KOUN), launched 00:00Z, 4.4 hours before the alert went out and 158 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 1998-06-19Temperature 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 1998-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3904 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
224 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 190426 RRA
SVRTUL
OKC091-190515-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1126 PM CDT THU JUN 18 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...

  MCINTOSH COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 1215 AM CDT

* AT 1124 PM...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE
  THUNDERSTORM NEAR VIVIAN BETWEEN RAIFORD AND EUFAULA...MOVING EAST
  AT 25 MPH.

* SOME LOCATIONS AFFECTED INCLUDE...
  VIVIAN
  EUFAULA
  LAKE EUFAULA

  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, 3 hours 26 minutes earlier.

Area forecast discussion, Jun 18, 8:00 PM CDT, 3 hours 26 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

In the hours before

Local storm report, Jun 18, 5:33 PM CDT, 5 hours 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
533 PM CDT THU JUN 18 1998

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

0955 PM    5 N CLAYTON               OK   1 INCH HAIL
06/18/98   PUSHMATAHA

1030 PM    1 W WHITESBORO            OK   WIND DAMAGE
06/18/98   LE FLORE                       TREE LIMB DOWN ACROSS ROAD
                                          AND TREES KNOCKED DOWN
                                          JUST WEST OF WHITESBORO.
Local storm report, Jun 18, 5:43 PM CDT, 5 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
543 PM CDT THU JUN 18 1998

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

0955 PM    STIGLER                   OK   1.75 INCH HAIL
06/18/98   HASKELL

0955 PM    STIGLER                   OK   60 MPH TSTM GUST
06/18/98   HASKELL                        LARGE TREE LIMBS KNOCKED
                                          DOWN.

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, 11:41 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

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; radar from the NEXRAD Level II archive.