Alert archive / Oklahoma / Tornado Warnings in 2001

Tornado Warning 70, NWS Norman, OK

October 9, 2001Beckham County, Oklahoma

NWS Norman, OK issued this tornado warning at Oct 9, 2001, 2:37 PM CDT for Beckham County, Oklahoma. It was in force for 23 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, 2:37 PM CDT (19:37 UTC)
Expired: Oct 9, 2001, 3:00 PM CDT
In force: 23 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Beckham 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, 2:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.6 hours before the alert went out and 182 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: 354 J/kg
Mixed-layer CIN: -163 J/kg
Mixed-layer LCL: 1472 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.2

Open this sounding in Storm Lab

The text

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

534 
WFUS54 KOUN 091939
TOROKC
OKC009-092000-

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

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  BECKHAM COUNTY IN WESTERN OKLAHOMA

* UNTIL 300 PM CDT

* AT 237 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM   
CAPABLE OF PRODUCING A TORNADO BETWEEN HIGHWAYS 152 AND 283...NORTH 
OF THE CANADIAN RIVER. THE STORM WAS MOVING NORTHEAST AT 20 MPH.

IN ADDITION TO A TORNADO THREAT... THIS STORM LIKELY CONTAINS
DAMAGING HAIL TO THE SIZE OF BASEBALLS OR LARGER.

A TORNADO MAY FORM AT ANYTIME. TAKE COVER NOW. ABANDON 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.

LAT...LON 3535 9976 3531 9974 3540 9952 3543 9967

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, 2:58 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
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; the sounding from the Mesonet's radiosonde archive.