Alert archive / Nebraska / Mesoscale Discussions in 2018
Mesoscale Discussion 859
The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2018, 12:51 PM MDT for 9 counties in Colorado; 16 counties in Nebraska. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Jun 24, 2018, 12:51 PM MDT (18:51 UTC)
- Expired
- Jun 24, 2018, 2:15 PM MDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 25 counties
Adams County, CO, Arapahoe County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Arthur County, NE, Blaine County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Perkins County, NE, Thomas County, NE
The radar
The Goodland radar (KGLD), 161 km from the middle of the area, began a volume at 18:54 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 12:00Z, 6.9 hours before the alert went out and 115 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1017 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -40 m²/s²
- 0-3 km storm-relative helicity
- 145 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 24, 1:16 AM MDT | Mesoscale Discussion | SPC | Cheyenne, Kit Carson, Logan, Morgan, Phillips, Sedgwick and 2 more | 59 min |
| Jun 24, 2:04 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Huerfano, Kiowa, Las Animas and 3 more | 86 min |
| Jun 24, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | Baca, Bent, Cheyenne, Crowley, El Paso, Huerfano and 7 more | 6 hr |
| Jun 24, 4:31 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Crowley, Kiowa | 89 min |
| Jun 24, 2:28 PM MDT | Mesoscale Discussion | SPC | Burt, Butler, Cass, Colfax, Cuming, Dakota and 16 more | 62 min |
Nearby
Mesoscale Discussions in Nebraska, 2018Mesoscale Discussions in Colorado, 2018Every mesoscale discussion in 2018
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.