Alert archive / North Dakota / Mesoscale Discussions in 2018
Mesoscale Discussion 900
The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2018, 8:05 PM MDT for 18 counties in North Dakota; Harding County, Perkins County, South Dakota. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Jun 26, 2018, 8:05 PM MDT (02:05 UTC)
- Expired
- Jun 26, 2018, 10:00 PM MDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
Counties Adams County, ND, Bottineau County, ND, Bowman County, ND, Dunn County, ND, Grant County, ND, Hettinger County, ND, McHenry County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Pierce County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Stark County, ND, Ward County, ND, Harding County, SD, Perkins County, SD
The radar
The Bismarck radar (KBIS), 95 km from the middle of the area, began a volume at 02:07 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.1 hours before the alert went out and 99 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
- 779 J/kg
- Mixed-layer CIN
- -71 J/kg
- Mixed-layer LCL
- 1650 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.8
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, 11:12 PM MDT | Severe Thunderstorm Watch | SPC | Emmons, McIntosh, Sioux | 9 hr |
| Jun 27, 1:18 AM MDT | Mesoscale Discussion | SPC | Emmons, McIntosh, Sioux | 87 min |
| Jun 26, 10:52 PM MDT | Mesoscale Discussion | SPC | Brule, Buffalo, Campbell, Corson, Dewey, Haakon and 15 more | 113 min |
| Jun 27, 3:18 AM MDT | Mesoscale Discussion | SPC | Aurora, Brule, Buffalo, Charles Mix, Davison, Douglas and 10 more | 87 min |
| Jun 27, 3:34 AM MDT | Severe Thunderstorm Watch | SPC | Aurora, Beadle, Bon Homme, Brule, Charles Mix, Davison and 10 more | 5 hr |
| Jun 27, 6:25 AM MDT | Mesoscale Discussion | SPC | Aurora, Beadle, Bon Homme, Brule, Buffalo, Charles Mix and 18 more | 95 min |
Nearby
Mesoscale Discussions in North Dakota, 2018Mesoscale Discussions in South Dakota, 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.