Alert archive / Colorado / Tornado Warnings in 2012
Tornado Warning 16, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 7, 2012, 7:05 PM MDT for Logan County, Weld County, Colorado. It was in force for 40 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 7, 2012, 7:05 PM MDT (01:05 UTC)
- Expired
- Jun 7, 2012, 7:45 PM MDT
- In force
- 40 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Storm-based polygon
Counties Logan County, CO, Weld County, CO
The radar
The Cheyenne radar (KCYS), 112 km from the middle of the area, began a volume at 01:09 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 |
|---|---|---|---|
| Jun 7, 11:46 AM MDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 1.1 hours before the alert went out and 96 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
- 1009 J/kg
- Mixed-layer CIN
- -107 J/kg
- Mixed-layer LCL
- 2384 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
572 WFUS55 KBOU 080105 TORBOU COC075-123-080145- /O.NEW.KBOU.TO.W.0016.120608T0105Z-120608T0145Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE DENVER CO 705 PM MDT THU JUN 7 2012 THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A * TORNADO WARNING FOR... EXTREME WEST CENTRAL LOGAN COUNTY IN NORTHEAST COLORADO EXTREME EAST CENTRAL WELD COUNTY IN NORTHEAST COLORADO * UNTIL 745 PM MDT * AT 705 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 6 MILES NORTH OF STONEHAM...OR 23 MILES WEST OF STERLING. THIS STORM WAS MOVING NORTH AT 10 MPH. * LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO STONEHAM. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4074 10355 4058 10354 4058 10375 4074 10376 TIME...MOT...LOC 0105Z 202DEG 8KT 4070 10364 $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 6:10 PM MDT | Severe Thunderstorm Warning | BOU | Logan | 50 min |
| Jun 7, 6:28 PM MDT | Tornado Warning | BOU | Elbert | 47 min |
| Jun 7, 6:31 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 44 min |
| Jun 7, 7:14 PM MDT | Tornado Warning | BOU | Elbert | 31 min |
| Jun 7, 7:45 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 45 min |
| Jun 7, 8:05 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 40 min |
| Jun 7, 8:31 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 20 min |
| Jun 7, 8:33 PM MDT | Tornado Warning | BOU | Weld | 27 min |
| Jun 7, 8:57 PM MDT | Tornado Warning | BOU | Weld | 33 min |
| Jun 7, 9:00 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 45 min |
| Jun 7, 9:28 PM MDT | Tornado Warning | BOU | Weld | 32 min |
| Jun 7, 9:42 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 48 min |
| Jun 7, 9:57 PM MDT | Tornado Warning | BOU | Weld | 33 min |
| Jun 7, 10:15 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 45 min |
| Jun 7, 10:29 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 46 min |
| Jun 7, 10:37 PM MDT | Areal Flood Advisory | BOU | Weld | 83 min |
| Jun 7, 10:59 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 34 min |
| Jun 7, 11:02 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 43 min |
| Jun 7, 11:12 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 33 min |
| Jun 8, 1:40 AM MDT | Severe Thunderstorm Warning | BOU | Elbert | 37 min |
| Jun 8, 3:03 PM MDT | Red Flag Warning | BOU | Boulder, Clear Creek, Douglas, Gilpin, Grand, Jackson and 5 more | 55 hr |
Nearby
Tornado Warnings in Colorado, 2012Every tornado warning in 2012Tornadoes in 2012
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.