Alert archive / Oklahoma / Tornado Warnings in 2001
Tornado Warning 69, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Sep 20, 2001, 6:32 PM CDT for Woods County, Oklahoma. It was in force for 28 min. 1 report 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 20, 2001, 6:32 PM CDT (23:32 UTC)
- Expired
- Sep 20, 2001, 7:00 PM CDT
- In force
- 28 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Woods County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 20, 6:45 PM CDT | Hail 3 | Plainview, 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 |
|---|---|---|---|
| Sep 20, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Dodge City, (KDDC), launched 12:00Z, 11.5 hours before the alert went out and 114 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
- 2081 J/kg
- Mixed-layer CIN
- -192 J/kg
- Mixed-layer LCL
- 1146 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 298 m²/s²
- 0-3 km storm-relative helicity
- 287 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.9
The text
As transmitted, in the capitals the NWS used until 2016.
656 WFUS54 KOUN 202332 TOROKC OKC151-210000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORMAN OK 632 PM CDT THU SEP 20 2001 THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN WOODS COUNTY IN NORTHWEST OKLAHOMA * UNTIL 700 PM CDT * AT 630 PM CDT...SPOTTERS REPORTED A TORNADO OVER NORTHWEST WOODS COUNTY... 8 TO 10 MILES EAST SOUTHEAST OF LOOKOUT. THE TORNADO WAS NEARLY STATIONARY. 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 3698 9937 3680 9925 3682 9892 3700 9898 MILLER
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 20, 4:53 AM CDT | Severe Thunderstorm Warning | OUN | Canadian, Oklahoma | 52 min |
| Sep 20, 5:56 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Murray | 34 min |
| Sep 20, 6:40 AM CDT | Severe Thunderstorm Warning | OUN | Carter, Johnston, Murray | 50 min |
| Sep 20, 10:48 AM CDT | Severe Thunderstorm Warning | OUN | Noble | 27 min |
| Sep 20, 11:48 AM CDT | Severe Thunderstorm Warning | OUN | Pontotoc | 42 min |
| Sep 20, 2:27 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Grady | 48 min |
| Sep 20, 5:12 PM CDT | Severe Thunderstorm Warning | OUN | Woods | 48 min |
| Sep 20, 6:01 PM CDT | Severe Thunderstorm Warning | OUN | Woods | 29 min |
| Sep 20, 6:48 PM CDT | Severe Thunderstorm Warning | OUN | Harper | 42 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.