Alert archive / Colorado / Tornado Warnings in 2007
Tornado Warning 17, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at May 3, 2007, 7:04 PM MDT for Morgan County, Colorado. It was in force for 41 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 3, 2007, 7:04 PM MDT (01:04 UTC)
- Expired
- May 3, 2007, 7:45 PM MDT
- In force
- 41 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Morgan County, CO
The radar
The Denver radar (KFTG), 89 km from the middle of the area, began a volume at 01:07 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 3, 4:17 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 3, 6:43 PM MDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 1.1 hours before the alert went out and 92 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
- 394 J/kg
- Mixed-layer CIN
- -118 J/kg
- Mixed-layer LCL
- 2658 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 209 m²/s²
- 0-3 km storm-relative helicity
- 338 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KBOU 040104 TORBOU COC087-040145- /O.NEW.KBOU.TO.W.0017.070504T0104Z-070504T0145Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 704 PM MDT THU MAY 3 2007 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN MORGAN COUNTY IN NORTHEAST COLORADO * UNTIL 745 PM MDT * AT 704 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES NORTH OF JACKSON RESERVOIR...OR ABOUT 23 MILES NORTHWEST OF FORT MORGAN. THIS STORM WAS MOVING EAST AT 25 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO JACKSON RESERVOIR. 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 4052 10414 4038 10414 4037 10373 4052 10374 $$
1 follow-up statement
000 WWUS55 KBOU 040116 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 716 PM MDT THU MAY 3 2007 COC087-040145- /O.CON.KBOU.TO.W.0017.000000T0000Z-070504T0145Z/ MORGAN CO- 716 PM MDT THU MAY 3 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM MDT FOR NORTHWESTERN MORGAN COUNTY... AT 716 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS LOCATED OVER EXTREME NORTHWESTERN MORGAN COUNTY...OR ABOUT 21 MILES NORTHWEST OF FORT MORGAN ALONG THE WELD...MORGAN COUNTY LINE. THIS STORM WAS MOVING EAST AT 25 MPH. THE SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF THE WARNED COUNTY. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT MDT FRIDAY MORNING FOR NORTHEAST COLORADO. LAT...LON 4052 10414 4038 10414 4037 10373 4052 10374 $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 3, 6:11 PM MDT | Tornado Warning | BOU | Weld | 49 min |
| May 3, 6:50 PM MDT | Tornado Warning | BOU | Weld | 40 min |
| May 3, 7:21 PM MDT | Tornado Warning | BOU | Weld | 24 min |
| May 3, 7:27 PM MDT | Tornado Warning | BOU | Weld | 48 min |
| May 3, 7:41 PM MDT | Tornado Warning | BOU | Morgan | 49 min |
| May 3, 8:12 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Weld | 48 min |
| May 3, 8:28 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 47 min |
| May 4, 3:32 PM MDT | Snow Advisory | BOU | Boulder, Grand, Jackson, Larimer | 12 hr |
Nearby
Tornado Warnings in Colorado, 2007Every tornado warning in 2007Tornadoes in 2007
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.