Alert archive / Colorado / Tornado Warnings in 2004

Tornado Warning 9, NWS Denver/Boulder, CO

May 22, 2004Logan County, Washington County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 22, 2004, 2:43 PM MDT for Logan County, Washington County, Colorado. It was in force for 62 min. 17 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: May 22, 2004, 2:43 PM MDT (20:43 UTC)
Expired: May 22, 2004, 3:45 PM MDT
In force: 62 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

Counties Logan County, CO, Washington County, CO

The radar

The Denver radar (KFTG), 143 km from the middle of the area, began a volume at 20:45 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	Remark
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:07 PM MDT	HAIL 1.75	Sterling, CO
May 22, 3:19 PM MDT	TSTM WND GST 58	14 Nnw Otis, CO
May 22, 3:19 PM MDT	TSTM WND GST 58	14 Nnw Otis, CO
May 22, 3:20 PM MDT	TORNADO	3 Se Padroni, CO	BRIEF TOUCHDOWN
May 22, 3:20 PM MDT	TORNADO	3 Se Padroni, CO	BRIEF TOUCHDOWN
May 22, 3:20 PM MDT	TORNADO	3 Se Padroni, CO	BRIEF TOUCHDOWN
May 22, 3:20 PM MDT	TORNADO	3 Se Padroni, CO	BRIEF TOUCHDOWN
May 22, 3:20 PM MDT	TORNADO	3 Se Padroni, CO	BRIEF TOUCHDOWN
May 22, 3:20 PM MDT	TORNADO	3 Se Padroni, CO	BRIEF TOUCHDOWN
May 22, 3:20 PM MDT	TORNADO	3 Se Padroni, CO	BRIEF TOUCHDOWN

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
May 22, 1:00 PM MDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.7 hours before the alert went out and 75 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: 2107 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 174 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 
WFUS55 KBOU 222043
TORBOU
COC075-121-222145-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
242 PM MDT SAT MAY 22 2004

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  LOGAN COUNTY IN NORTHEAST COLORADO
  THIS INCLUDES THE CITY OF STERLING
  NORTHEASTERN WASHINGTON COUNTY IN NORTHEAST COLORADO

* UNTIL 345 PM MDT

* AT 242 PM MDT...THE PUBLIC REPORTED A TORNADO 3 MILES SOUTHEAST OF
  PAWNEE PASS...OR ABOUT 13 MILES WEST OF STERLING...MOVING EAST AT
  30 MPH.

SPOTTERS HAVE REPORTED A WALL CLOUD WITH THIS STORM OVER WESTERN 
LOGAN COUNTY. 

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...
STERLING...ATWOOD...BURDETT...CROOK...FLEMING...ILIFF...LOGAN
CORNERS...LONE STAR...MERINO...NORTH STERLING RESERVOIR...PADRONI...
PAWNEE PASS...PREWITT RESERVOIR...PROCTOR...ST PETERSBURG AND
WESTPLAINS.

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 4057 10358 4056 10348 4047 10347 4033 10328
          4029 10281 4046 10280 4045 10268 4090 10268
          4088 10358

$$
RJK

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 12:56 PM MDT	Severe Thunderstorm Warning	BOU	Weld	64 min
May 22, 2:53 PM MDT	Tornado Warning	BOU	Logan, Washington	52 min
May 22, 3:44 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	31 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.