Alert archive / Oklahoma / Tornado Warnings in 2002

Tornado Warning 9, NWS Norman, OK

April 17, 2002Woodward County, Oklahoma

NWS Norman, OK issued this tornado warning at Apr 17, 2002, 5:40 PM CDT for Woodward 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: Apr 17, 2002, 5:40 PM CDT (22:40 UTC)
Expired: Apr 17, 2002, 6:15 PM CDT
In force: 35 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

County Woodward 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
Apr 17, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.7 hours before the alert went out and 149 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1612 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 399 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KOUN 172240
TOROKC
OKC153-172315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
540 PM CDT WED APR 17 2002

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

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

* UNTIL 615 PM CDT

* AT 540 PM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO 4 MILES WEST OF WOODWARD...MOVING
  NORTHEAST AT 20 MPH.

* LOCATIONS IN THE WARNING INCLUDE WOODWARD

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 3643 9960 3631 9945 3655 9910 3671 9930

CJS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 7:16 PM CDT	Severe Thunderstorm Warning	OUN	Carter	44 min
Apr 16, 7:17 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Coal	43 min
Apr 16, 7:22 PM CDT	Severe Thunderstorm Warning	OUN	Jefferson	38 min
Apr 16, 7:36 PM CDT	Tornado Warning	OUN	Atoka, Coal, Johnston	24 min
Apr 16, 7:40 PM CDT	Tornado Warning	OUN	Atoka, Coal, Johnston	20 min
Apr 16, 7:41 PM CDT	Severe Thunderstorm Warning	OUN	Carter, Garvin, Murray	49 min
Apr 16, 8:06 PM CDT	Tornado Warning	OUN	Atoka	24 min
Apr 16, 8:07 PM CDT	Severe Thunderstorm Warning	OUN	Coal	38 min
Apr 16, 8:30 PM CDT	Tornado Warning	OUN	Atoka	45 min
Apr 16, 9:16 PM CDT	Tornado Warning	OUN	Atoka	29 min
Apr 17, 4:30 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	45 min
Apr 17, 4:54 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woodward	36 min
Apr 17, 5:30 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods, Woodward	45 min
Apr 17, 6:15 PM CDT	Tornado Warning	OUN	Woodward	30 min
Apr 17, 6:16 PM CDT	Severe Thunderstorm Warning	OUN	Harper	44 min
Apr 17, 6:24 PM CDT	Severe Thunderstorm Warning	OUN	Woods	51 min

Nearby

Tornado Warnings in Oklahoma, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.