Alert archive / Oklahoma / Tornado Warnings in 2003

Tornado Warning 11, NWS Tulsa, OK

April 19, 2003Nowata County, Washington County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Apr 19, 2003, 6:07 PM CDT for Nowata County, Washington County, Oklahoma. It was in force for 38 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 19, 2003, 6:07 PM CDT (23:07 UTC)
Expired: Apr 19, 2003, 6:45 PM CDT
In force: 38 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

Counties Nowata County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 87 km from the middle of the area, began a volume at 23:09 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
Apr 19, 2:30 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.1 hours before the alert went out and 176 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: 36 J/kg
Mixed-layer CIN: -416 J/kg
Mixed-layer LCL: 1511 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 251 m²/s²
0-3 km storm-relative helicity: 229 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 KTSA 192307
TORTUL
OKC105-147-192345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
607 PM CDT SAT APR 19 2003

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN NOWATA COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN WASHINGTON COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 645 PM CDT

* AT 607 PM CDT...DOPPLER RADAR INDICATED A TORNADIC THUNDERSTORM 6
  MILES WEST OF DEWEY...MOVING NORTHEAST AT 40 MPH. STORM SPOTTERS
  REPORTED A TORNADO ON THE GROUND THIS IS A LIFE THREATENING
  SITUATION...TAKE COVER NOW

* SOME LOCATIONS NEAR THE PATH OF THIS TORNADO INCLUDE...DEWEY...
  COPAN...LENAPAH...SOUTH COFFEYVILLE AND WANN.

A TORNADO HAS BEEN CONFIRMED IF YOU ARE NEAR THE PATH OF THIS
TORNADO...TAKE COVER NOW IF NO UNDERGROUND SHELTER IS AVAILABLE MOVE
TO AN INTERIOR ROOM ON THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES
SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS

LAT...LON 3694 9601 3674 9602 3689 9542 3719 9545

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 3:57 PM CDT	Tornado Warning	TSA	Creek, Okmulgee	33 min
Apr 19, 4:25 PM CDT	Tornado Warning	TSA	Tulsa	35 min
Apr 19, 4:29 PM CDT	Tornado Warning	TSA	Osage, Washington	61 min
Apr 19, 4:42 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	48 min
Apr 19, 4:44 PM CDT	Tornado Warning	TSA	Creek, Okmulgee, Tulsa	46 min
Apr 19, 4:47 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	58 min
Apr 19, 4:47 PM CDT	Tornado Warning	TSA	Creek, Okmulgee, Tulsa	43 min
Apr 19, 4:57 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Wagoner	63 min
Apr 19, 5:06 PM CDT	Tornado Warning	TSA	Osage, Pawnee	39 min
Apr 19, 5:10 PM CDT	Tornado Warning	TSA	Pittsburg	50 min
Apr 19, 5:39 PM CDT	Tornado Warning	TSA	Osage	51 min
Apr 19, 5:50 PM CDT	Tornado Warning	TSA	Washington	40 min
Apr 19, 6:25 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	50 min
Apr 19, 6:44 PM CDT	Tornado Warning	TSA	Pittsburg	31 min

Nearby

Tornado Warnings in Oklahoma, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.