Alert archive / Colorado / Mesoscale Discussions in 2020
Mesoscale Discussion 1009
The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2020, 3:51 PM MDT for 23 counties in Colorado; 4 counties in Nebraska; Laramie County, Wyoming. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Jun 26, 2020, 3:51 PM MDT (21:51 UTC)
- Expired
- Jun 26, 2020, 5:15 PM MDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 306
All 28 counties
Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Crowley County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Kit Carson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Pueblo County, CO, Sedgwick County, CO, Teller County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Cheyenne County, NE, Deuel County, NE, Kimball County, NE, Laramie County, WY
The radar
The Denver radar (KFTG), 14 km from the middle of the area, began a volume at 21:52 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, 9.9 hours before the alert went out and 100 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
- 108 J/kg
- Mixed-layer CIN
- -365 J/kg
- Mixed-layer LCL
- 1341 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Jun 26, 12:07 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Baca, Bent, Boulder, Broomfield and 22 more | 113 min |
| Jun 26, 1:12 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Baca, Bent, Boulder, Broomfield and 24 more | 10 hr |
| Jun 25, 6:45 PM MDT | Mesoscale Discussion | SPC | Blaine, Brown, Buffalo, Cherry, Custer, Dawson and 18 more | 60 min |
| Jun 26, 5:30 PM MDT | Mesoscale Discussion | SPC | Cass, Gage, Jefferson, Johnson, Nemaha, Otoe and 2 more | 90 min |
Nearby
Mesoscale Discussions in Colorado, 2020Mesoscale Discussions in Nebraska, 2020Mesoscale Discussions in Wyoming, 2020Every mesoscale discussion in 2020
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.