Alert archive / Colorado / Mesoscale Discussions in 2007
Mesoscale Discussion 1452
The Storm Prediction Center issued this mesoscale discussion at Jul 11, 2007, 8:38 PM MDT for 8 counties in Colorado; 6 counties in Nebraska; 4 counties in Wyoming. It was in force for 97 min.
The area
The outline as issued.
The facts
- Issued
- Jul 11, 2007, 8:38 PM MDT (02:38 UTC)
- Expired
- Jul 11, 2007, 10:15 PM MDT
- In force
- 97 min
- Issued by
- the Storm Prediction Center
Counties Cheyenne County, CO, Kit Carson County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Albany County, WY, Goshen County, WY, Laramie County, WY, Platte County, WY
The radar
The Denver radar (KFTG), 154 km from the middle of the area, began a volume at 02:38 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 00:00Z, 2.6 hours before the alert went out and 82 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
- 320 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 2266 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 6:12 PM MDT | Tornado Watch | SPC | Adams, Arapahoe, Cheyenne, Kit Carson, Logan, Morgan and 5 more | 6 hr |
| Jul 11, 9:17 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Elbert, El Paso, Huerfano and 7 more | 88 min |
| Jul 12, 12:36 PM MDT | Mesoscale Discussion | SPC | Logan, Phillips, Sedgwick, Weld | 84 min |
| Jul 12, 1:03 PM MDT | Severe Thunderstorm Watch | SPC | Boulder, Larimer, Logan, Morgan, Phillips, Sedgwick and 2 more | 7 hr |
| Jul 12, 3:55 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Elbert, Kit Carson, Lincoln, Washington, Yuma | 95 min |
| Jul 12, 4:19 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln and 1 more | 7 hr |
| Jul 12, 5:36 PM MDT | Mesoscale Discussion | SPC | Boulder, Larimer, Logan, Morgan, Phillips, Sedgwick and 1 more | 54 min |
Nearby
Mesoscale Discussions in Colorado, 2007Mesoscale Discussions in Nebraska, 2007Mesoscale Discussions in Wyoming, 2007Every mesoscale discussion 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.