Alert archive / Colorado / Tornado Warnings in 2007
Tornado Warning 47, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 28, 2007, 4:57 PM MDT for Weld County, Colorado. It was in force for 29 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 28, 2007, 4:57 PM MDT (22:57 UTC)
- Expired
- Jun 28, 2007, 5:26 PM MDT
- In force
- 29 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Counties, with a storm outline in the text
County Weld County, CO
The radar
The Cheyenne radar (KCYS), 28 km from the middle of the area, began a volume at 22:58 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, 11.0 hours before the alert went out and 179 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
- 696 J/kg
- Mixed-layer CIN
- -276 J/kg
- Mixed-layer LCL
- 1338 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KBOU 282259 TORBOU COC123-282345- /O.NEW.KBOU.TO.W.0047.070628T2257Z-070628T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 457 PM MDT THU JUN 28 2007 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN WELD COUNTY IN NORTHEAST COLORADO * UNTIL 545 PM MDT * AT 457 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES NORTHEAST OF NATURAL FORT REST AREA...OR ABOUT 12 MILES SOUTH OF CHEYENNE. ADDITIONALLY...FUNNEL CLOUDS WERE REPORTED JUST WEST OF I-25 NEAR THE WYOMING BORDER. THIS STORM WAS MOVING EAST AT 5 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROCKPORT... NATURAL FORT REST AREA AND CARR. THIS REPLACES THE SEVERE THUNDERSTORM WARNING FOR NORTHWEST WELD COUNTY. DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT. LAT...LON 4101 10496 4075 10494 4076 10473 4100 10465 $$
2 follow-up statements
000 WWUS55 KBOU 282310 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 509 PM MDT THU JUN 28 2007 COC123-282345- /O.CON.KBOU.TO.W.0047.000000T0000Z-070628T2345Z/ WELD CO- 509 PM MDT THU JUN 28 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM MDT FOR NORTHWESTERN WELD COUNTY... AT 509 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS LOCATED 5 MILES EAST OF NATURAL FORT REST AREA ON HIGHWAY 85...OR ABOUT 11 MILES SOUTH OF CHEYENNE. THIS STORM WAS MOVING EAST AT 5 MPH. LOCATIONS REMAINING IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ROCKPORT...NATURAL FORT REST AREA AND CARR. DO NOT USE YOUR CAR TO TRY TO OUTRUN A TORNADO. CARS ARE EASILY TOSSED AROUND BY TORNADO WINDS. IF YOU ARE CAUGHT IN THE PATH OF A TORNADO...LEAVE THE CAR AND GO TO A STRONG BUILDING. IF NO SAFE STRUCTURE IS NEARBY...SEEK SHELTER IN A DITCH OR LOW SPOT AND COVER YOUR HEAD. LAT...LON 4101 10496 4075 10494 4076 10473 4100 10465 $$
000 WWUS55 KBOU 282326 SVSBOU SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 526 PM MDT THU JUN 28 2007 COC123-282336- /O.CAN.KBOU.TO.W.0047.000000T0000Z-070628T2345Z/ WELD CO- 526 PM MDT THU JUN 28 2007 ...THE TORNADO WARNING FOR NORTHWESTERN WELD COUNTY IS CANCELLED... THE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED AND IS NO LONGER EXPECTED TO PRODUCE SEVERE WEATHER. LAT...LON 4101 10496 4075 10494 4076 10473 4100 10465 $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 9:31 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 59 min |
| Jun 28, 4:39 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 36 min |
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.