Alert archive / Colorado / Tornado Warnings in 2004
Tornado Warning 5, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 10, 2004, 9:14 PM MDT for Arapahoe County, Washington County, Colorado. It was in force for 46 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
- May 10, 2004, 9:14 PM MDT (03:14 UTC)
- Expired
- May 10, 2004, 10:00 PM MDT
- In force
- 46 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
Counties Arapahoe County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 72 km from the middle of the area, began a volume at 03:18 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 10, 7:30 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 3.2 hours before the alert went out and 47 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.
- Mixed-layer CAPE
- 1849 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1895 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 197 m²/s²
- 0-3 km storm-relative helicity
- 358 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 17.4
The text
As transmitted, in the capitals the NWS used until 2016.
452 WFUS55 KBOU 110314 TORBOU COC005-121-110400- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 912 PM MDT MON MAY 10 2004 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... EASTERN ARAPAHOE COUNTY IN NORTHEAST COLORADO SOUTHWESTERN WASHINGTON COUNTY IN NORTHEAST COLORADO * UNTIL 1000 PM MDT * AT 912 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH A POSSIBLE TORNADO 4 MILES SOUTHEAST OF JOLLY RANCH...OR ABOUT 23 MILES NORTH OF LIMON...MOVING NORTH AT 10 MPH. LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO...JOLLY RANCH AND LAST CHANCE. THIS WARNING REPLACES THE EARLIER TORNADO WARNING...WHILE THE TORNADO WARNING FOR NORTHEAST ELBERT AND NORTH CENTRAL LINCOLN HAS BEEN CANCELLED. THIS IS AN EXTREMELY DANGEROUS AND POTENTIALLY LIFE THREATENING SITUATION. IF YOU ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO...TAKE COVER IMMEDIATELY. 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 3974 10384 3957 10387 3957 10354 3975 10352 $$ ENTREKIN
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 6:13 PM MDT | Tornado Warning | BOU | Weld | 32 min |
| May 10, 6:25 PM MDT | Tornado Warning | BOU | Elbert | 65 min |
| May 10, 7:26 PM MDT | Tornado Warning | BOU | Elbert | 64 min |
| May 10, 8:32 PM MDT | Tornado Warning | BOU | Arapahoe, Elbert, Lincoln, Washington | 58 min |
| May 10, 9:25 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips | 35 min |
| May 10, 9:37 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 53 min |
| May 10, 10:02 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 58 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.