Alert archive / Colorado / Mesoscale Discussions in 2005
Mesoscale Discussion 1729
The Storm Prediction Center issued this mesoscale discussion at Jul 11, 2005, 2:34 PM MDT for 4 states. It was in force for 116 min.
The area
The outline as issued.
The facts
- Issued
- Jul 11, 2005, 2:34 PM MDT (20:34 UTC)
- Expired
- Jul 11, 2005, 4:30 PM MDT
- In force
- 116 min
- Issued by
- the Storm Prediction Center
All 30 counties
Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Fall River County, SD, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 82 km from the middle of the area, began a volume at 20:36 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 8.6 hours before the alert went out and 120 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
- 61 J/kg
- Mixed-layer CIN
- -397 J/kg
- Mixed-layer LCL
- 2254 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, 2:55 PM MDT | Severe Thunderstorm Watch | SPC | Cheyenne, Kit Carson, Lincoln, Logan, Morgan, Phillips and 3 more | 6 hr |
| Jul 10, 9:51 PM MDT | Mesoscale Discussion | SPC | Arthur, Cherry, Garden, Grant, Hooker, Keith and 2 more | 84 min |
| Jul 11, 2:58 PM MDT | Mesoscale Discussion | SPC | Dakota, Dixon, Thurston | 92 min |
| Jul 10, 6:54 PM MDT | Mesoscale Discussion | SPC | Campbell, Corson, Dewey, Edmunds, Faulk, Haakon and 10 more | 96 min |
Nearby
Mesoscale Discussions in Colorado, 2005Mesoscale Discussions in Nebraska, 2005Mesoscale Discussions in Wyoming, 2005Every mesoscale discussion in 2005
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.