Alert archive / Colorado / Tornado Warnings in 2004

Tornado Warning 14, NWS Denver/Boulder, CO

June 9, 2004Arapahoe County, Denver County, Jefferson County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 9, 2004, 2:48 PM MDT for Arapahoe County, Denver County, Jefferson County, Colorado. It was in force for 42 min. 60 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 9, 2004, 2:48 PM MDT (20:48 UTC)
Expired
Jun 9, 2004, 3:30 PM MDT
In force
42 min
Issued by
NWS Denver/Boulder, CO
Area
Counties, with a storm outline in the text

Counties Arapahoe County, CO, Denver County, CO, Jefferson County, CO

The radar

The Denver radar (KFTG), 41 km from the middle of the area, began a volume at 20:48 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

TimeReportWhereRemark
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:00 PM MDTHAIL 1Denver, CO6TH AND FEDERAL
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1Denver, COCOORS FIELD
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:04 PM MDTHAIL 1.5Denver, CODOWNTOWN DENVER
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL
Jun 9, 3:05 PM MDTHAIL 1.75Denver, CO6TH AND FEDERAL

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.

IssuedProductOfficeLasted
Jun 9, 1:40 PM MDTTornado WatchSPC6 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.8 hours before the alert went out and 154 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-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2004-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 25 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2004-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
25 J/kg
Mixed-layer CIN
-342 J/kg
Mixed-layer LCL
1625 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
105 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 092048
TORBOU
COC005-031-059-092130-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
248 PM MDT WED JUN 9 2004

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN ARAPAHOE COUNTY IN NORTHEAST COLORADO
  DENVER COUNTY IN NORTHEAST COLORADO
  THIS INCLUDES THE CITY OF DENVER
  EAST CENTRAL JEFFERSON COUNTY IN NORTHEAST COLORADO

* UNTIL 330 PM MDT

* AT 248 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO OVER EXTREME SOUTHWESTERN
  DENVER...MOVING NORTHEAST AT 10 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...WEST
CENTRAL AURORA...WESTERN CENTENNIAL...DENVER...ENGLEWOOD...EASTERN
LAKEWOOD...LITTLETON...WHEAT RIDGE...GREENWOOD VILLAGE AND SHERIDAN.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

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 3978 10513 3957 10514 3957 10485 3981 10484

$$

RPK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 8, 6:07 PM MDTFlash Flood WarningBOUDouglas, Jefferson113 min
Jun 8, 7:58 PM MDTSevere Thunderstorm WarningBOUJefferson47 min
Jun 8, 8:40 PM MDTSevere Thunderstorm WarningBOUAdams, Denver, Jefferson65 min
Jun 8, 8:51 PM MDTFlash Flood WarningBOUAdams, Denver, Jefferson3 hr
Jun 8, 9:19 PM MDTSevere Thunderstorm WarningBOUBoulder, Larimer56 min
Jun 9, 1:55 PM MDTSevere Thunderstorm WarningBOUDouglas, Jefferson50 min
Jun 9, 2:34 PM MDTSevere Thunderstorm WarningBOUArapahoe, Denver, Douglas, Jefferson56 min
Jun 9, 2:49 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe56 min
Jun 9, 2:51 PM MDTSevere Thunderstorm WarningBOUWeld54 min
Jun 9, 3:32 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Denver, Jefferson58 min
Jun 9, 3:46 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe59 min
Jun 9, 4:18 PM MDTTornado WarningBOUAdams42 min
Jun 9, 4:39 PM MDTFlash Flood WarningBOUDouglas3 hr
Jun 9, 4:43 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld62 min
Jun 9, 4:57 PM MDTTornado WarningBOUAdams63 min
Jun 9, 5:08 PM MDTSevere Thunderstorm WarningBOUDouglas52 min
Jun 9, 5:46 PM MDTSevere Thunderstorm WarningBOUMorgan59 min
Jun 9, 5:52 PM MDTSevere Thunderstorm WarningBOUWashington53 min
Jun 9, 5:59 PM MDTTornado WarningBOUMorgan46 min

Nearby

Tornado Warnings in Colorado, 2004Every tornado warning in 2004Tornadoes 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.