Alert archive / Nebraska / Mesoscale Discussions in 2015
Mesoscale Discussion 869
The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2015, 11:57 PM CDT for 14 counties in Nebraska; 4 counties in South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2015, 11:57 PM CDT (04:57 UTC)
- Expired
- Jun 3, 2015, 2:00 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
Counties Blaine County, NE, Boyd County, NE, Brown County, NE, Custer County, NE, Garfield County, NE, Greeley County, NE, Holt County, NE, Howard County, NE, Logan County, NE, Loup County, NE, Rock County, NE, Sherman County, NE, Valley County, NE, Wheeler County, NE, Charles Mix County, SD, Douglas County, SD, Gregory County, SD, Tripp County, SD
The radar
The North Platte radar (KLNX), 117 km from the middle of the area, began a volume at 04:59 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
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 5.0 hours before the alert went out and 187 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
- 1700 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 1604 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
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, 9:01 PM CDT | Mesoscale Discussion | SPC | Arthur, Blaine, Boyd, Brown, Cherry, Custer and 17 more | 89 min |
| Jun 2, 9:25 PM CDT | Severe Thunderstorm Watch | SPC | Blaine, Boyd, Brown, Buffalo, Custer, Dawson and 14 more | 5 hr |
| Jun 3, 1:03 AM CDT | Severe Thunderstorm Watch | SPC | Adams, Buffalo, Clay, Dawson, Fillmore, Greeley and 11 more | 3 hr |
| Jun 3, 3:01 AM CDT | Mesoscale Discussion | SPC | Adams, Antelope, Arthur, Blaine, Boone, Boyd and 66 more | 89 min |
| Jun 3, 1:34 PM CDT | Mesoscale Discussion | SPC | Banner, Kimball, Scotts Bluff | 86 min |
| Jun 3, 3:03 PM CDT | Tornado Watch | SPC | Banner, Kimball, Scotts Bluff, Sioux | 7 hr |
| Jun 3, 4:05 PM CDT | Mesoscale Discussion | SPC | Franklin, Furnas, Harlan, Webster | 115 min |
| Jun 3, 6:33 PM CDT | Tornado Watch | SPC | Adams, Clay, Fillmore, Franklin, Furnas, Gage and 11 more | 7 hr |
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.