Alert archive / Oklahoma / Tornado Warnings in 2001

Tornado Warning 82, NWS Norman, OK

October 9, 2001Caddo County, Oklahoma

NWS Norman, OK issued this tornado warning at Oct 9, 2001, 6:43 PM CDT for Caddo County, Oklahoma. It was in force for 32 min. No storm report in the archive falls 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.

The facts

Issued: Oct 9, 2001, 6:43 PM CDT (23:43 UTC)
Expired: Oct 9, 2001, 7:15 PM CDT
In force: 32 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Caddo County, OK

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, 5:30 PM CDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.7 hours before the alert went out and 101 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.

033 
WFUS54 KOUN 092344
TOROKC
OKC015-100015-

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

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

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

* UNTIL 715 PM CDT

* AT 643 PM CDT...A THUNDERSTORM WITH A HISTORY OF PRODUCING   
TORNADOES WAS MOVING ACROSS THE CENTRAL PART OF CADDO COUNTY. THE 
MOST DANGEROUS PARTS OF THE STORM WERE LOCATED 9 MILES SOUTHWEST OF 
ALBERT...AND JUST SOUTHEAST OF EAKLY.

* LOCATIONS IN THE WARNING INCLUDE ALBERT

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 3524 9868 3510 9860 3514 9827 3529 9833
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, 4:49 PM CDT	Tornado Warning	OUN	Kiowa	41 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

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; the sounding from the Mesonet's radiosonde archive.