Alert archive / Colorado / Mesoscale Discussions in 2008
Mesoscale Discussion 964
The Storm Prediction Center issued this mesoscale discussion at May 21, 2008, 5:33 PM MDT for 5 states. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- May 21, 2008, 5:33 PM MDT (23:33 UTC)
- Expired
- May 21, 2008, 6:30 PM MDT
- In force
- 57 min
- Issued by
- the Storm Prediction Center
All 50 counties
Adams County, CO, Arapahoe County, CO, Bent County, CO, Broomfield County, CO, Cheyenne County, CO, Crowley County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Kiowa County, CO, Kit Carson County, CO, Larimer County, CO, Las Animas County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Otero County, CO, Phillips County, CO, Prowers County, CO, Pueblo County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Wallace County, KS, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Custer County, SD, Fall River County, SD, Lawrence County, SD, Albany County, WY, Campbell County, WY, Converse County, WY, Crook County, WY, Goshen County, WY, Johnson County, WY, Laramie County, WY, Natrona County, WY, Niobrara County, WY, Platte County, WY, Washakie County, WY, Weston County, WY
The radar
The Cheyenne radar (KCYS), 22 km from the middle of the area, began a volume at 23:36 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 nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.6 hours before the alert went out and 181 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
- 848 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1951 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 110 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 |
|---|---|---|---|---|
| May 21, 2:21 PM MDT | Mesoscale Discussion | SPC | Logan, Weld | 54 min |
| May 21, 2:46 PM MDT | Severe Thunderstorm Watch | SPC | Kit Carson, Logan, Morgan, Phillips, Sedgwick, Washington and 2 more | 7 hr |
Nearby
Mesoscale Discussions in Colorado, 2008Mesoscale Discussions in Wyoming, 2008Mesoscale Discussions in Nebraska, 2008Every mesoscale discussion in 2008
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.