Alert archive / Oklahoma / Tornado Warnings in 2001

Tornado Warning 77, NWS Norman, OK

October 9, 2001Kiowa County, Oklahoma

NWS Norman, OK issued this tornado warning at Oct 9, 2001, 4:49 PM CDT for Kiowa County, Oklahoma. It was in force for 41 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: Oct 9, 2001, 4:49 PM CDT (21:49 UTC)
Expired: Oct 9, 2001, 5:30 PM CDT
In force: 41 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Kiowa County, OK

What was reported inside it

Time	Report	Where	Remark
Oct 9, 4:52 PM CDT	Tornado F0	Hobart, OK	D1. This tornado was brief and resulted in no damage.

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
Oct 9, 2:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 9.8 hours before the alert went out and 163 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: 212 J/kg
Mixed-layer CIN: -197 J/kg
Mixed-layer LCL: 603 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 228 m²/s²
0-3 km storm-relative helicity: 292 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

542 
WFUS54 KOUN 092149
TOROKC
OKC075-092230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
449 PM CDT TUE OCT 9 2001

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  KIOWA COUNTY IN SOUTHWEST OKLAHOMA

* UNTIL 530 PM CDT

* AT 449 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO 3 MILES SOUTHEAST OF LONE WOLF...
  MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IN THE WARNING INCLUDE HOBART AND LONE WOLF

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 3496 9936 3489 9922 3514 9877 3512 9917
CJS

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 9, 1:50 PM CDT	Severe Thunderstorm Warning	OUN	Beckham	55 min
Oct 9, 2:37 PM CDT	Tornado Warning	OUN	Beckham	23 min
Oct 9, 2:58 PM CDT	Tornado Warning	OUN	Beckham	32 min
Oct 9, 3:21 PM CDT	Tornado Warning	OUN	Beckham, Roger Mills	24 min
Oct 9, 3:41 PM CDT	Tornado Warning	OUN	Custer	34 min
Oct 9, 3:44 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	46 min
Oct 9, 3:58 PM CDT	Tornado Warning	OUN	Beckham	32 min
Oct 9, 4:06 PM CDT	Tornado Warning	OUN	Roger Mills	39 min
Oct 9, 4:16 PM CDT	Severe Thunderstorm Warning	OUN	Custer	44 min
Oct 9, 4:38 PM CDT	Tornado Warning	OUN	Custer, Washita	52 min
Oct 9, 4:44 PM CDT	Severe Thunderstorm Warning	OUN	Kiowa	46 min
Oct 9, 5:24 PM CDT	Tornado Warning	OUN	Custer	51 min
Oct 9, 5:25 PM CDT	Tornado Warning	OUN	Kiowa, Washita	50 min
Oct 9, 5:55 PM CDT	Tornado Warning	OUN	Blaine, Caddo	50 min
Oct 9, 6:13 PM CDT	Tornado Warning	OUN	Washita	32 min
Oct 9, 6:43 PM CDT	Tornado Warning	OUN	Caddo	32 min

Nearby

Tornado Warnings in Oklahoma, 2001 Every tornado warning in 2001 Tornadoes 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.