Alert archive / Colorado / Mesoscale Discussions in 2017
Mesoscale Discussion 666
The Storm Prediction Center issued this mesoscale discussion at May 8, 2017, 6:18 PM MDT for 23 counties in Colorado; Cheyenne County, Deuel County, Kimball County, Nebraska. It was in force for 87 min.
The area
The outline as issued.
The facts
- Issued
- May 8, 2017, 6:18 PM MDT (00:18 UTC)
- Expired
- May 8, 2017, 7:45 PM MDT
- In force
- 87 min
- Issued by
- the Storm Prediction Center
All 26 counties
Adams County, CO, Arapahoe County, CO, Baca County, CO, Bent County, CO, Cheyenne County, CO, Crowley County, CO, El Paso County, CO, Elbert County, CO, Huerfano County, CO, Kiowa County, CO, Kit Carson 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, Cheyenne County, NE, Deuel County, NE, Kimball County, NE
The radar
The Pueblo radar (KPUX), 50 km from the middle of the area, began a volume at 00:22 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 (KDEN), launched 00:00Z, 0.3 hours before the alert went out and 135 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
- 99 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1093 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 310 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 9:55 AM MDT | Mesoscale Discussion | SPC | Las Animas | 3 hr |
| May 9, 11:15 AM MDT | Severe Thunderstorm Watch | SPC | Bent, Costilla, Crowley, Huerfano, Las Animas, Otero and 1 more | 9 hr |
| May 9, 2:29 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Crowley, Kiowa, Las Animas and 4 more | 91 min |
| May 9, 5:24 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Cheyenne, Costilla, Crowley, Huerfano and 6 more | 66 min |
| May 9, 5:51 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Kiowa, Kit Carson, Prowers and 1 more | 7 hr |
Nearby
Mesoscale Discussions in Colorado, 2017Mesoscale Discussions in Nebraska, 2017Every mesoscale discussion in 2017
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.