Alert archive / Montana / Mesoscale Discussions in 2010
Mesoscale Discussion 979
The Storm Prediction Center issued this mesoscale discussion at Jun 16, 2010, 8:50 PM MDT for 5 counties in Montana; Billings County, McKenzie County, Williams County, North Dakota. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Jun 16, 2010, 8:50 PM MDT (02:50 UTC)
- Expired
- Jun 16, 2010, 9:45 PM MDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
Counties Daniels County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Billings County, ND, McKenzie County, ND, Williams County, ND
The radar
The Glasgow radar (KGGW), 61 km from the middle of the area, began a volume at 02:51 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
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.8 hours before the alert went out and 412 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
- 935 J/kg
- Mixed-layer CIN
- -190 J/kg
- Mixed-layer LCL
- 1650 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 174 m²/s²
- 0-3 km storm-relative helicity
- 204 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 16, 6:01 PM MDT | Mesoscale Discussion | SPC | Big Horn, Carter, Custer, Fallon, Powder River, Rosebud and 2 more | 59 min |
| Jun 16, 6:20 PM MDT | Tornado Watch | SPC | Daniels, Dawson, Garfield, McCone, Petroleum, Phillips and 6 more | 8 hr |
| Jun 16, 9:23 PM MDT | Mesoscale Discussion | SPC | Carter | 67 min |
| Jun 16, 10:09 PM MDT | Severe Thunderstorm Watch | SPC | Barnes, Burleigh, Dickey, Emmons, Kidder, LaMoure and 3 more | 5 hr |
| Jun 17, 1:05 AM MDT | Mesoscale Discussion | SPC | Barnes, Benson, Bottineau, Burleigh, Dickey, Eddy and 20 more | 55 min |
| Jun 17, 6:53 AM MDT | Mesoscale Discussion | SPC | Cass, Grand Forks, Griggs, Nelson, Ransom, Richland and 3 more | 97 min |
| Jun 17, 11:04 AM MDT | Mesoscale Discussion | SPC | Barnes, Benson, Bottineau, Burleigh, Cass, Cavalier and 31 more | 56 min |
| Jun 17, 11:21 AM MDT | Tornado Watch | SPC | Barnes, Benson, Bottineau, Burke, Burleigh, Cass and 36 more | 9 hr |
| Jun 17, 1:18 PM MDT | Mesoscale Discussion | SPC | Barnes, Benson, Bottineau, Burleigh, Cass, Dickey and 24 more | 57 min |
| Jun 17, 5:41 PM MDT | Mesoscale Discussion | SPC | Grand Forks, Walsh | 64 min |
Nearby
Mesoscale Discussions in Montana, 2010Mesoscale Discussions in North Dakota, 2010Every mesoscale discussion in 2010
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.