Alert archive / Oklahoma / Tornado Warnings in 2001
Tornado Warning 68, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Sep 18, 2001, 12:49 AM CDT for Major County, Oklahoma. It was in force for 26 min. 2 reports came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Sep 18, 2001, 12:49 AM CDT (05:49 UTC)
- Expired
- Sep 18, 2001, 1:15 AM CDT
- In force
- 26 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Major County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 18, 1:00 AM CDT | Thunderstorm Wind | Ringwood, OK | Trees were downed along Highway 60. |
| Sep 18, 1:20 AM CDT | Tornado F1 | Ringwood, OK | This tornado was confirmed by a National Weather Service damage survey. At Ringwood High School, the football field pressbox was completely destroyed with debris blown eastward. In addition, an 80 foot lightpole was downed, and large trees sustained limb damag |
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
Lamont, OK (KLMN), launched 00:00Z, 5.8 hours before the alert went out and 75 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
- 1656 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1077 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
170 WFUS54 KOUN 180549 TOROKC OKC093-180615- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 1249 AM CDT TUE SEP 18 2001 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... MAJOR COUNTY IN NORTHWEST OKLAHOMA * UNTIL 115 AM CDT * AT 1249 AM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES WEST OF RINGWOOD...MOVING EAST AT 35 MPH. * LOCATIONS IN THE WARNING INCLUDE MENO AND RINGWOOD TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE WALLS. LAT...LON 3644 9839 3636 9840 3633 9811 3646 9811 ANDRA
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 11:02 PM CDT | Severe Thunderstorm Warning | OUN | Harper, Woods, Woodward | 43 min |
| Sep 17, 11:14 PM CDT | Severe Thunderstorm Warning | OUN | Ellis | 31 min |
| Sep 17, 11:43 PM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Major, Woods | 52 min |
| Sep 17, 11:43 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Woodward | 52 min |
| Sep 18, 1:05 AM CDT | Severe Thunderstorm Warning | OUN | Garfield, Kingfisher | 40 min |
Nearby
Tornado Warnings in Oklahoma, 2001Every tornado warning in 2001Tornadoes in 2001
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.