Alert archive / Nebraska / Mesoscale Discussions in 2018
Mesoscale Discussion 770
The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2018, 3:52 PM CDT for 4 states. It was in force for 53 min.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2018, 3:52 PM CDT (20:52 UTC)
- Expired
- Jun 17, 2018, 4:45 PM CDT
- In force
- 53 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 64 counties
Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dickinson County, IA, Emmet County, IA, Harrison County, IA, Ida County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pottawattamie County, IA, Sac County, IA, Shelby County, IA, Sioux County, IA, Woodbury County, IA, Blue Earth County, MN, Brown County, MN, Cottonwood County, MN, Jackson County, MN, Lyon County, MN, Martin County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Rock County, MN, Sibley County, MN, Watonwan County, MN, Burt County, NE, Butler County, NE, Cass County, NE, Cedar County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Lancaster County, NE, Madison County, NE, Otoe County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Sarpy County, NE, Saunders County, NE, Seward County, NE, Stanton County, NE, Thurston County, NE, Washington County, NE, Wayne County, NE, Clay County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Moody County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 126 km from the middle of the area, began a volume at 20:54 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
Minneapolis, MN (KMPX), launched 12:00Z, 8.9 hours before the alert went out and 350 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
- 1067 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.4
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 |
|---|---|---|---|---|
| Jun 16, 9:01 PM CDT | Mesoscale Discussion | SPC | Big Stone, Chippewa, Douglas, Grant, Kandiyohi, Lac qui Parle and 12 more | 119 min |
| Jun 16, 9:08 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Benton, Carlton, Cass, Crow Wing and 7 more | 67 min |
| Jun 16, 9:47 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Becker, Benton, Carlton, Cass, Chisago and 22 more | 7 hr |
| Jun 16, 10:17 PM CDT | Mesoscale Discussion | SPC | Big Stone, Traverse | 88 min |
| Jun 16, 11:44 PM CDT | Mesoscale Discussion | SPC | Aitkin, Anoka, Becker, Benton, Carlton, Cass and 28 more | 2 hr |
| Jun 17, 2:38 AM CDT | Mesoscale Discussion | SPC | Aitkin, Carlton, Chisago, Isanti, Kanabec, Mille Lacs and 1 more | 97 min |
| Jun 17, 12:12 PM CDT | Mesoscale Discussion | SPC | Aitkin, Anoka, Benton, Carlton, Carver, Chippewa and 20 more | 93 min |
| Jun 17, 12:34 PM CDT | Tornado Watch | SPC | Aitkin, Anoka, Benton, Carlton, Chisago, Crow Wing and 10 more | 8 hr |
| Jun 17, 3:08 PM CDT | Mesoscale Discussion | SPC | Anoka, Chisago, Hennepin, Isanti, Pine, Ramsey and 1 more | 97 min |
| Jun 17, 5:23 PM CDT | Mesoscale Discussion | SPC | Anoka, Chisago, Hennepin, Isanti, Ramsey, Sherburne and 2 more | 2 hr |
| Jun 16, 7:59 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cherry, Cheyenne, Dawes, Garden and 5 more | 91 min |
| Jun 16, 9:50 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cherry, Dawes, Grant, Morrill and 2 more | 85 min |
| Jun 17, 2:05 PM CDT | Mesoscale Discussion | SPC | Blaine, Chase, Custer, Deuel, Dundy, Frontier and 7 more | 85 min |
| Jun 17, 2:35 PM CDT | Tornado Watch | SPC | Arthur, Blaine, Chase, Custer, Deuel, Dundy and 12 more | 7 hr |
| Jun 17, 4:53 PM CDT | Mesoscale Discussion | SPC | Arthur, Chase, Cheyenne, Deuel, Dundy, Garden and 9 more | 97 min |
| Jun 17, 5:47 PM CDT | Mesoscale Discussion | SPC | Blaine, Boyd, Brown, Holt, Knox, Logan and 3 more | 118 min |
| Jun 17, 6:47 PM CDT | Mesoscale Discussion | SPC | Arthur, Chase, Deuel, Hayes, Hooker, Keith and 5 more | 88 min |
Nearby
Mesoscale Discussions in Nebraska, 2018Mesoscale Discussions in Iowa, 2018Mesoscale Discussions in Minnesota, 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.