Alert archive / Oklahoma / Tornado Warnings in 1998
Tornado Warning 78, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Oct 17, 1998, 2:57 PM CDT for Osage County, Tulsa County, Washington County, Oklahoma. It was in force for 33 min. 4 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
- Oct 17, 1998, 2:57 PM CDT (19:57 UTC)
- Expired
- Oct 17, 1998, 3:30 PM CDT
- In force
- 33 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Osage County, OK, Tulsa County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 58 km from the middle of the area, began a volume at 19:59 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 17, 3:00 PM CDT | Thunderstorm Wind | Ochelata, OK | A barn was destroyed just east of Ochelata. Power poles were also snapped off. |
| Oct 17, 3:00 PM CDT | Thunderstorm Wind 52 | Ochelata, OK | |
| Oct 17, 3:05 PM CDT | Thunderstorm Wind | Vera, OK | Two cars were blown off of US Hwy 75. |
| Oct 17, 3:20 PM CDT | Thunderstorm Wind | Ramona, OK | The roof was blown off of a barn. |
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 12:00Z, 8.0 hours before the alert went out and 184 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
- 319 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1104 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 403 m²/s²
- 0-3 km storm-relative helicity
- 455 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 17.1
The text
As transmitted, in the capitals the NWS used until 2016.
291
WFUS54 KTSA 171959 RRA
TORTUL
OKC113-143-147-172030-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
257 PM CDT SAT OCT 17 1998
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* TORNADO WARNING FOR
NORTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA
SOUTHERN WASHINGTON COUNTY IN NORTHEAST OKLAHOMA
SOUTHEAST OSAGE COUNTY IN NORTHEAST OKLAHOMA
* UNTIL 330 PM CDT
* AT 257 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG
ROTATION 5 MILES WEST OF SKIATOOK. MOVING NORTHEAST AT 45 MILES PER
HOUR...THIS DANGEROUS STORM COULD PRODUCE A TORNADO AT ANY TIME.
* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... SKIATOOK...
AVANT...RAMONA AND VERA
THIS IS A DANGEROUS STORM. IF YOU ARE IN OR NEAR ITS PATH YOU SHOULD
PREPARE FOR LARGE HAIL...DAMAGING WINDS AND POSSIBLY A TORNADO. IF NO
UNDERGROUND SHELTER IS AVAILABLE TAKE COVER ON THE LOWEST FLOOR IN AN
INTERIOR ROOM AWAY FROM WINDOWS.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 16, 7:59 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 31 min |
| Oct 16, 8:31 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 29 min |
| Oct 17, 12:52 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 38 min |
| Oct 17, 1:28 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 32 min |
| Oct 17, 1:55 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 50 min |
| Oct 17, 2:11 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Washington | 49 min |
| Oct 17, 2:11 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 49 min |
| Oct 17, 3:07 PM CDT | Tornado Warning | TSA | Nowata, Rogers | 53 min |
| Oct 17, 3:47 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers, Washington | 43 min |
| Oct 17, 3:47 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 43 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; radar from the NEXRAD Level II archive.