Alert archive / Colorado / Tornado Warnings in 2004

Tornado Warning 31, NWS Denver/Boulder, CO

June 30, 2004Arapahoe County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 30, 2004, 1:38 PM MDT for Arapahoe County, Colorado. It was in force for 37 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: Jun 30, 2004, 1:38 PM MDT (19:38 UTC)
Expired: Jun 30, 2004, 2:15 PM MDT
In force: 37 min
Issued by: NWS Denver/Boulder, CO
Area: Counties, with a storm outline in the text

County Arapahoe County, CO

The radar

The Denver radar (KFTG), 20 km from the middle of the area, began a volume at 19:38 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 nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 7.6 hours before the alert went out and 101 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: 1452 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 8 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.

785 
WFUS55 KBOU 301938
TORBOU
COC005-302015-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
138 PM MDT WED JUN 30 2004

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL ARAPAHOE COUNTY IN NORTHEAST COLORADO

* UNTIL 215 PM MDT

* AT 135 PM MDT...THE NATIONAL WEATHER SERVICE DOPPLER INDICATED A 
THUNDERSTORM WITH A POSSIBLE TORNADO NEAR COUNTRY GARDENS...OR ABOUT 
33 MILES EAST OF DENVER...MOVING NORTHWEST AT 10 MPH.

LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...COUNTRY 
GARDENS AND STRASBURG.

SEVERAL REPORTS OF FUNNEL CLOUDS ASSOCIATED WITH THIS THUNDERSTORM 
HAVE BEEN RECEIVED FROM SPOTTERS AS WELL AS FIREFIGHTERS IN 
STRASBURG. ADDITIONAL FUNNEL CLOUDS OR RAPID TORNADO DEVELOPMENT 
WILL BE POSSIBLE. 

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 3960 10433 3974 10428 3974 10448 3961 10449

$$
DANKERS

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.