Alert archive / Oklahoma / Tornado Warnings in 2004

Tornado Warning 39, NWS Norman, OK

May 29, 2004Dewey County, Oklahoma

NWS Norman, OK issued this tornado warning at May 29, 2004, 5:40 PM CDT for Dewey County, Oklahoma. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 29, 2004, 5:40 PM CDT (22:40 UTC)
Expired: May 29, 2004, 6:15 PM CDT
In force: 35 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

County Dewey County, OK

The radar

The Vance AFB radar (KVNX), 121 km from the middle of the area, began a volume at 22:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 29, 2:55 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 10.7 hours before the alert went out and 158 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: 1318 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 1006 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 265 m²/s²
0-3 km storm-relative helicity: 292 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.6

Open this sounding in Storm Lab

The text

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

383 
WFUS54 KOUN 292240
TOROKC
OKC043-292315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
540 PM CDT SAT MAY 29 2004

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  DEWEY COUNTY IN NORTHWEST OKLAHOMA

* UNTIL 615 PM CDT

* AT 540 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES WEST OF
  PUTNAM...MOVING EAST AT 30 MPH.

* LOCATIONS IN THE WARNING INCLUDE PUTNAM

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 3596 9916 3584 9916 3583 9877 3598 9880

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 29, 3:47 PM CDT	Severe Thunderstorm Warning	OUN	Roger Mills	43 min
May 29, 4:16 PM CDT	Tornado Warning	OUN	Roger Mills	29 min
May 29, 4:39 PM CDT	Severe Thunderstorm Warning	OUN	Woods	51 min
May 29, 4:43 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Roger Mills	47 min
May 29, 4:58 PM CDT	Severe Thunderstorm Warning	OUN	Woodward	47 min
May 29, 5:05 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Washita	40 min
May 29, 5:28 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Major	47 min
May 29, 5:41 PM CDT	Tornado Warning	OUN	Woods	34 min
May 29, 5:45 PM CDT	Severe Thunderstorm Warning	OUN	Custer	30 min
May 29, 6:15 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey	45 min
May 29, 6:18 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major	42 min
May 29, 6:34 PM CDT	Tornado Warning	OUN	Custer	26 min
May 29, 6:39 PM CDT	Tornado Warning	OUN	Blaine	36 min

Nearby

Tornado Warnings in Oklahoma, 2004 Every tornado warning in 2004 Tornadoes in 2004

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; radar from the NEXRAD Level II archive.