Alert archive / Colorado / Tornado Warnings in 2004
Tornado Warning 46, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Aug 9, 2004, 9:00 PM MDT for Lincoln County, Colorado. It was in force for 45 min. 2 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
- Aug 9, 2004, 9:00 PM MDT (03:00 UTC)
- Expired
- Aug 9, 2004, 9:45 PM MDT
- In force
- 45 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Lincoln County, CO
The radar
The Denver radar (KFTG), 98 km from the middle of the area, began a volume at 03:01 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 |
|---|---|---|---|
| Aug 9, 9:09 PM MDT | HAIL 0.75 | 2 Nne Limon, CO | |
| Aug 9, 9:09 PM MDT | HAIL 0.75 | 2 Nne Limon, CO |
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 |
|---|---|---|---|
| Aug 9, 6:45 PM MDT | Tornado Watch | SPC | 4 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 3.0 hours before the alert went out and 70 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
- 2151 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1371 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 10.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KBOU 100300 TORBOU COC073-100345- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 858 PM MDT MON AUG 9 2004 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... NORTH CENTRAL LINCOLN COUNTY IN EAST CENTRAL COLORADO THIS INCLUDES THE CITY OF LIMON * UNTIL 945 PM MDT * AT 858 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM WITH A POSSIBLE TORNADO 3 MILES NORTH OF LIMON... MOVING SOUTH AT 10 MPH. THIS IS A DANGEROUS STORM AND PERSONS IN LIMON SHOULD TAKE COVER IMMEDIATELY LOCATIONS IN THE WARNING INCLUDE...BUT ARE NOT LIMITED TO... GENOA...HUGO AND LIMON. 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 3946 10371 3908 10371 3908 10340 3946 10340 $$ RPK
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 6:00 PM MDT | Tornado Warning | BOU | Washington | 45 min |
| Aug 9, 6:13 PM MDT | Tornado Warning | BOU | Elbert | 47 min |
| Aug 9, 6:31 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe | 59 min |
| Aug 9, 6:46 PM MDT | Tornado Warning | BOU | Lincoln, Washington | 44 min |
| Aug 9, 6:52 PM MDT | Tornado Warning | BOU | Elbert | 38 min |
| Aug 9, 7:09 PM MDT | Tornado Warning | BOU | Washington | 36 min |
| Aug 9, 7:26 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 64 min |
| Aug 9, 8:31 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 29 min |
| Aug 9, 8:50 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 40 min |
| Aug 10, 2:48 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 57 min |
| Aug 10, 3:04 PM MDT | Tornado Warning | BOU | Larimer, Weld | 41 min |
| Aug 10, 3:44 PM MDT | Tornado Warning | BOU | Weld | 46 min |
| Aug 10, 4:31 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 49 min |
| Aug 10, 4:49 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 41 min |
| Aug 10, 5:06 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Broomfield, Denver | 39 min |
| Aug 10, 5:16 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Broomfield, Denver | 44 min |
| Aug 10, 5:32 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Broomfield, Denver | 43 min |
| Aug 10, 5:39 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 36 min |
| Aug 10, 5:45 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 45 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.