Alert archive / Nebraska / Mesoscale Discussions in 2015
Mesoscale Discussion 866
The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2015, 5:27 PM MDT for 14 counties in Nebraska; 9 counties in South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2015, 5:27 PM MDT (23:27 UTC)
- Expired
- Jun 2, 2015, 7:30 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 23 counties
Arthur County, NE, Box Butte County, NE, Brown County, NE, Cherry County, NE, Dawes County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, McPherson County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Thomas County, NE, Bennett County, SD, Custer County, SD, Fall River County, SD, Jackson County, SD, Lawrence County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Todd County, SD
The radar
The Rapid City radar (KUDX), 160 km from the middle of the area, began a volume at 23:29 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
Rapid City, SD (KRAP), launched 12:00Z, 11.5 hours before the alert went out and 155 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
- 95 J/kg
- Mixed-layer CIN
- -540 J/kg
- Mixed-layer LCL
- 1851 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 151 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 |
|---|---|---|---|---|
| Jun 2, 12:37 PM MDT | Mesoscale Discussion | SPC | Arthur, Banner, Box Butte, Cheyenne, Dawes, Deuel and 7 more | 53 min |
| Jun 2, 2:44 PM MDT | Severe Thunderstorm Watch | SPC | Arthur, Banner, Box Butte, Cherry, Dawes, Garden and 6 more | 7 hr |
| Jun 2, 1:28 PM MDT | Mesoscale Discussion | SPC | Campbell, McPherson | 92 min |
| Jun 2, 1:46 PM MDT | Tornado Watch | SPC | Campbell, Corson, McPherson | 7 hr |
| Jun 2, 5:22 PM MDT | Mesoscale Discussion | SPC | Campbell, McPherson | 113 min |
Nearby
Mesoscale Discussions in Nebraska, 2015Mesoscale Discussions in South Dakota, 2015Every mesoscale discussion in 2015
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.