Alert archive / North Dakota / Mesoscale Discussions in 2016
Mesoscale Discussion 1456
The Storm Prediction Center issued this mesoscale discussion at Jul 31, 2016, 1:27 PM MDT for 4 counties in Montana; 27 counties in North Dakota; 4 counties in South Dakota. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 31, 2016, 1:27 PM MDT (19:27 UTC)
- Expired
- Jul 31, 2016, 3:30 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 35 counties
Fallon County, MT, Richland County, MT, Sheridan County, MT, Wibaux County, MT, Adams County, ND, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burke County, ND, Burleigh County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, McHenry County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Pierce County, ND, Renville County, ND, Sheridan County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND, Corson County, SD, Harding County, SD, Perkins County, SD, Ziebach County, SD
The radar
The Bismarck radar (KBIS), 123 km from the middle of the area, began a volume at 19:28 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 12:00Z, 7.5 hours before the alert went out and 127 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
- 263 J/kg
- Mixed-layer CIN
- -263 J/kg
- Mixed-layer LCL
- 1097 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 95 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 |
|---|---|---|---|---|
| Jul 31, 2:24 PM MDT | Severe Thunderstorm Watch | SPC | Carter, Fallon, Wibaux | 8 hr |
| Jul 31, 4:42 PM MDT | Mesoscale Discussion | SPC | Carter, Dawson, Fallon, Richland, Roosevelt, Sheridan and 1 more | 2 hr |
| Jul 30, 6:28 PM MDT | Mesoscale Discussion | SPC | Gregory, Todd, Tripp | 92 min |
| Jul 30, 6:34 PM MDT | Mesoscale Discussion | SPC | Dewey, Hughes, Hyde, Jones, Lyman, Potter and 3 more | 86 min |
| Jul 30, 6:48 PM MDT | Severe Thunderstorm Watch | SPC | Buffalo, Hughes, Hyde, Jones, Lyman, Potter and 2 more | 4 hr |
| Jul 30, 8:32 PM MDT | Severe Thunderstorm Watch | SPC | Bennett, Custer, Fall River, Jackson, Mellette, Oglala Lakota and 3 more | 7 hr |
| Jul 30, 8:50 PM MDT | Mesoscale Discussion | SPC | Hughes, Hyde, Jones, Lyman, Stanley | 55 min |
| Jul 30, 10:03 PM MDT | Mesoscale Discussion | SPC | Bennett, Haakon, Jackson, Jones, Mellette, Oglala Lakota and 2 more | 117 min |
| Jul 30, 11:53 PM MDT | Mesoscale Discussion | SPC | Charles Mix, Gregory, Tripp | 97 min |
| Jul 31, 12:00 PM MDT | Mesoscale Discussion | SPC | Butte, Custer, Fall River, Lawrence, Meade, Oglala Lakota and 1 more | 90 min |
| Jul 31, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | Bennett, Butte, Custer, Fall River, Haakon, Harding and 7 more | 7 hr |
Nearby
Mesoscale Discussions in North Dakota, 2016Mesoscale Discussions in Montana, 2016Mesoscale Discussions in South Dakota, 2016Every mesoscale discussion in 2016
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.