Alert archive / Colorado / Tornado Warnings in 2005

Tornado Warning 30, NWS Denver/Boulder, CO

July 15, 2005Arapahoe County, Denver County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jul 15, 2005, 3:55 PM MDT for Arapahoe County, Denver County, Colorado. It was in force for 35 min. 1 report 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: Jul 15, 2005, 3:55 PM MDT (21:55 UTC)
Expired: Jul 15, 2005, 4:30 PM MDT
In force: 35 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

Counties Arapahoe County, CO, Denver County, CO

The radar

The Denver radar (KFTG), 26 km from the middle of the area, began a volume at 21:58 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
Jul 15, 3:58 PM MDT	HAIL 0.75	3 W Centennial, CO

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

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.9 hours before the alert went out and 135 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: 196 J/kg
Mixed-layer CIN: -456 J/kg
Mixed-layer LCL: 1830 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -6 m²/s²
0-3 km storm-relative helicity: 20 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 152155
TORBOU
COC005-031-152230-
/O.NEW.KBOU.TO.W.0030.050715T2155Z-050715T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
355 PM MDT FRI JUL 15 2005

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN ARAPAHOE COUNTY IN NORTHEAST COLORADO
  SOUTH CENTRAL DENVER COUNTY IN NORTHEAST COLORADO
  THIS INCLUDES THE CITY OF SOUTH CENTRAL DENVER

* UNTIL 430 PM MDT

* AT 353 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER EAST
  CENTRAL CENTENNIAL...OR ABOUT 13 MILES SOUTHEAST OF DENVER. THIS
  STORM WAS MOVING SOUTHEAST AT 5 MPH.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GREENWOOD
  VILLAGE...ARAPAHOE PARK...SOUTH CENTRAL DENVER...EASTERN CENTENNIAL
  AND SOUTHWESTERN AURORA.

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.

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 3970 10468 3966 10496 3957 10491 3957 10466

$$

RPK

3 follow-up statements

000 
WWUS55 KBOU 152204
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
402 PM MDT FRI JUL 15 2005

COC005-031-152230-
/O.CON.KBOU.TO.W.0030.000000T0000Z-050715T2230Z/
ARAPAHOE CO-DENVER CO-
403 PM MDT FRI JUL 15 2005

...A TORNADO WARNING CONTINUES UNTIL 430 PM MDT FOR SOUTH CENTRAL
DENVER AND WESTERN ARAPAHOE COUNTIES...

AT 400 PM MDT...THE PUBLIC REPORTED A POSSIBLE TORNADO IN THE CITY 
OF CENTENNIAL NEAR SMOKEY HILL ROAD AND ORCHARD ROAD.  THIS IS A 
DANGEROUS STORM AND PEOPLE SHOULD TAKE COVER IMMEDIATELY

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GREENWOOD VILLAGE...ARAPAHOE PARK...SOUTH CENTRAL DENVER...EASTERN
CENTENNIAL AND SOUTHWESTERN AURORA.

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.

LAT...LON 3970 10468 3966 10496 3957 10491 3957 10466

$$

RPK

000 
WWUS55 KBOU 152213
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
412 PM MDT FRI JUL 15 2005

COC005-031-152230-
/O.CON.KBOU.TO.W.0030.000000T0000Z-050715T2230Z/
ARAPAHOE CO-DENVER CO-
412 PM MDT FRI JUL 15 2005

...A TORNADO WARNING CONTINUES UNTIL 430 PM MDT FOR SOUTH CENTRAL
DENVER AND WESTERN ARAPAHOE COUNTIES...

AT 410 PM MDT...TRAINED WEATHER SPOTTERS CONTINUED TO REPORT FUNNEL 
CLOUDS NEAR FOXFIELD OR ABOUT 14 MILES SOUTHEAST OF DENVER EAST OF 
SMOKEY HILL ROAD AND ORCHARD. THIS STORM WAS MOVING SOUTHEAST AT 5 
MPH.

LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
GREENWOOD VILLAGE...ARAPAHOE PARK...SOUTH CENTRAL DENVER...EASTERN
CENTENNIAL AND SOUTHWESTERN AURORA.

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 3970 10468 3966 10496 3957 10491 3957 10466

$$

RPK

000 
WWUS55 KBOU 152230
SVSBOU

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
430 PM MDT FRI JUL 15 2005

COC005-031-152239-
/O.EXP.KBOU.TO.W.0030.000000T0000Z-050715T2230Z/
ARAPAHOE CO-DENVER CO-
430 PM MDT FRI JUL 15 2005

...THE TORNADO WARNING FOR SOUTH CENTRAL DENVER AND WESTERN ARAPAHOE
COUNTIES EXPIRED AT 430 PM MDT...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO 
LONGER EXPECTED TO PRODUCE SEVERE WEATHER OR TORNADOES.

LAT...LON 3970 10468 3966 10496 3957 10491 3957 10466

$$

RPK

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 2:02 PM MDT	Severe Thunderstorm Warning	BOU	Boulder	43 min
Jul 15, 2:29 PM MDT	Severe Thunderstorm Warning	BOU	Boulder, Gilpin	35 min
Jul 15, 3:09 PM MDT	Severe Thunderstorm Warning	BOU	Douglas	51 min
Jul 15, 3:12 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver	48 min
Jul 15, 3:49 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Denver	26 min
Jul 15, 4:10 PM MDT	Tornado Warning	BOU	Douglas	36 min
Jul 15, 4:21 PM MDT	Severe Thunderstorm Warning	BOU	Adams	39 min
Jul 15, 5:02 PM MDT	Severe Thunderstorm Warning	BOU	Adams	43 min
Jul 15, 5:05 PM MDT	Severe Thunderstorm Warning	BOU	Weld	55 min
Jul 15, 5:47 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Washington	45 min
Jul 15, 5:48 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Weld	61 min

Nearby

Tornado Warnings in Colorado, 2005 Every tornado warning in 2005 Tornadoes in 2005

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.