Alert archive / Oklahoma / Tornado Warnings in 1998
Tornado Warning 40, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Jun 13, 1998, 8:36 PM CDT for Pawnee County, Oklahoma. It was in force for 54 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 13, 1998, 8:36 PM CDT (01:36 UTC)
- Expired
- Jun 13, 1998, 9:30 PM CDT
- In force
- 54 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Pawnee County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 13, 8:50 PM CDT | Hail 1.25 | Pawnee, OK | |
| Jun 13, 9:00 PM CDT | Hail 1.25 | Pawnee, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 13, 4:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 1.6 hours before the alert went out and 137 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.
- Mixed-layer CAPE
- 3674 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 1597 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 16.9
The text
As transmitted, in the capitals the NWS used until 2016.
383 WFUS54 KTSA 140135 RRA TORTUL OKC117-140230- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TULSA OK 836 PM CDT SAT JUN 13 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * TORNADO WARNING FOR... PAWNEE COUNTY IN NORTHEASTERN OKLAHOMA * UNTIL 930 PM CDT * AT 833 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM WITH STRONG ROTATION 14 MILES WEST OF PAWNEE. A TORNADO COULD FORM AT ANY TIME AS THIS STORM MOVES EAST AT 25 MPH. * THE FOLLOWING LOCATIONS ARE NEAR THE PATH OF THIS STORM... PAWNEE MARAMEC TAKE SHELTER NOW DONT WAIT UNTIL YOU SEE OR HEAR IT COMING MOVE TO AN UNDERGROUND SHELTER OR TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. 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 13, 7:59 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 31 min |
| Jun 13, 8:09 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 51 min |
| Jun 13, 9:26 PM CDT | Tornado Warning | TSA | Creek | 49 min |
| Jun 13, 10:27 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Tulsa | 33 min |
| Jun 13, 10:57 PM CDT | Severe Thunderstorm Warning | TSA | Rogers | 33 min |
| Jun 13, 11:33 PM CDT | Severe Thunderstorm Warning | TSA | Rogers | 27 min |
Nearby
Tornado 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.