Alert archive / Oklahoma / Tornado Warnings in 1998

Tornado Warning 45, NWS Tulsa, OK

June 18, 1998Cherokee County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Jun 18, 1998, 7:33 PM CDT for Cherokee County, Oklahoma. It was in force for 42 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 18, 1998, 7:33 PM CDT (00:33 UTC)
Expired: Jun 18, 1998, 8:15 PM CDT
In force: 42 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Cherokee County, OK

The radar

The Tulsa radar (KINX), 59 km from the middle of the area, began a volume at 00:36 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 18, 4:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 0.6 hours before the alert went out and 154 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: 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.

752 
WFUS54 KTSA 190034 RRA
TORTUL
OKC021-190115-

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

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...

  SOUTHERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA

* UNTIL 815 PM CDT

* AT 731 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM WITH STRONG ROTATION 5 MILES EAST OF FORT
  GIBSON...MOVING EAST AT 20 MPH. A TORNADO MAY FORM AT ANY TIME
  WITH THIS STORM.

* THE FOLLOWING LOCATIONS ARE NEAR THE PATH OF THIS TORNADO...
  PETTIT
  TENKILLER LAKE
  COOKSON
  BARBER
  CHEROKEE LANDING STATE PARK

MOTORISTS SHOULD ABANDON VEHICLES FOR MORE SUBSTANTIAL SHELTER
TAKE COVER IN A NEARBY STURDY BUILDING. AS A LAST RESORT...TAKE
COVER IN A DITCH OR CULVERT. PROTECT YOUR HEAD FROM FLYING DEBRIS.

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.

Issued	Product	Office	Counties	Lasted
Jun 18, 7:11 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	64 min
Jun 18, 7:15 PM CDT	Tornado Warning	TSA	Muskogee, Wagoner	30 min
Jun 18, 7:23 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	37 min
Jun 18, 7:36 PM CDT	Tornado Warning	TSA	McIntosh, Okmulgee	39 min
Jun 18, 7:44 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee	61 min
Jun 18, 7:49 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	56 min
Jun 18, 7:54 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	51 min
Jun 18, 8:14 PM CDT	Tornado Warning	TSA	McIntosh	46 min
Jun 18, 8:19 PM CDT	Severe Thunderstorm Warning	TSA	Latimer	56 min
Jun 18, 8:40 PM CDT	Tornado Warning	TSA	Haskell, Pittsburg	50 min
Jun 18, 8:53 PM CDT	Tornado Warning	TSA	Latimer	37 min
Jun 18, 9:05 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, Pittsburg	55 min
Jun 18, 9:08 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	37 min
Jun 18, 9:12 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Pushmataha	63 min
Jun 18, 9:31 PM CDT	Tornado Warning	TSA	Latimer	44 min
Jun 18, 9:34 PM CDT	Flash Flood Warning	TSA	Latimer	2 hr
Jun 18, 9:42 PM CDT	Tornado Warning	TSA	Sequoyah	48 min
Jun 18, 10:07 PM CDT	Tornado Warning	TSA	LeFlore	38 min
Jun 18, 10:14 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	61 min
Jun 18, 10:20 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	40 min
Jun 18, 10:22 PM CDT	Severe Thunderstorm Warning	TSA	Latimer	38 min
Jun 18, 10:25 PM CDT	Tornado Warning	TSA	Pittsburg	50 min
Jun 18, 10:56 PM CDT	Tornado Warning	TSA	Latimer	49 min
Jun 18, 11:17 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	43 min
Jun 18, 11:23 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	37 min
Jun 18, 11:24 PM CDT	Tornado Warning	TSA	Pushmataha	51 min
Jun 18, 11:26 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	49 min
Jun 18, 11:41 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	64 min
Jun 18, 11:50 PM CDT	Flash Flood Warning	TSA	Latimer	100 min
Jun 18, 11:55 PM CDT	Severe Thunderstorm Warning	TSA	Latimer	35 min
Jun 19, 12:07 AM CDT	Severe Thunderstorm Warning	TSA	Haskell	53 min
Jun 19, 12:44 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	46 min
Jun 19, 1:06 AM CDT	Severe Thunderstorm Warning	TSA	Haskell	54 min
Jun 19, 1:29 AM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pittsburg	61 min
Jun 19, 1:59 AM CDT	Severe Thunderstorm Warning	TSA	Haskell	31 min
Jun 19, 2:11 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	64 min

Nearby

Tornado Warnings in Oklahoma, 1998 Every tornado warning in 1998 Tornadoes 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.