Alert archive / Colorado / Tornado Warnings in 2004

Tornado Warning 28, NWS Denver/Boulder, CO

June 17, 2004Lincoln County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 17, 2004, 5:45 PM MDT for Lincoln County, Colorado. It was in force for 30 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 17, 2004, 5:45 PM MDT (23:45 UTC)
Expired: Jun 17, 2004, 6:15 PM MDT
In force: 30 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

County Lincoln County, CO

The radar

The Pueblo radar (KPUX), 97 km from the middle of the area, began a volume at 23:48 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.

What was reported inside it

Time	Report	Where
Jun 17, 5:54 PM MDT	HAIL 1.75	1 W Boyero, CO
Jun 17, 5:54 PM MDT	HAIL 1.75	1 W Boyero, CO
Jun 17, 5:54 PM MDT	HAIL 1.75	1 W Boyero, CO
Jun 17, 6:04 PM MDT	HAIL 0.75	1 Sse Boyero, CO
Jun 17, 6:04 PM MDT	HAIL 0.75	1 Sse Boyero, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 17, 1:45 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 11.8 hours before the alert went out and 102 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: 68 J/kg
Mixed-layer CIN: -278 J/kg
Mixed-layer LCL: 656 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 170 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

425 
WFUS55 KBOU 172345
TORBOU
COC073-180015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
545 PM MDT THU JUN 17 2004

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL LINCOLN COUNTY IN EAST CENTRAL COLORADO

* UNTIL 615 PM MDT

* AT 545 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO OVER BOYERO...OR ABOUT 33
  MILES SOUTHEAST OF LIMON...MOVING NORTHEAST AT 15 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...BOYERO.

IF YOU ARE IN OR NEAR BOYERO TAKE SHELTER NOW

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3897 10333 3887 10328 3889 10317 3907 10316

$$

GIMMESTAD

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 16, 6:17 PM MDT	Severe Thunderstorm Warning	BOU	Washington	43 min
Jun 16, 7:30 PM MDT	Tornado Warning	BOU	Arapahoe, Elbert	45 min
Jun 17, 1:19 PM MDT	Flash Flood Warning	BOU	Douglas	2 hr
Jun 17, 2:02 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Douglas	58 min
Jun 17, 5:08 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	67 min
Jun 17, 5:12 PM MDT	Tornado Warning	BOU	Lincoln	48 min

Nearby

Tornado Warnings in Colorado, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.