Alert archive / Minnesota / Mesoscale Discussions in 2011
Mesoscale Discussion 2090
The Storm Prediction Center issued this mesoscale discussion at Sep 1, 2011, 3:40 AM CDT for 13 counties in Minnesota; 12 counties in North Dakota. It was in force for 65 min.
The area
The outline as issued.
The facts
- Issued
- Sep 1, 2011, 3:40 AM CDT (08:40 UTC)
- Expired
- Sep 1, 2011, 4:45 AM CDT
- In force
- 65 min
- Issued by
- the Storm Prediction Center
All 25 counties
Beltrami County, MN, Clearwater County, MN, Itasca County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Benson County, ND, Cavalier County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Steele County, ND, Traill County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 120 km from the middle of the area, began a volume at 08:40 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
International Fa, MN (KINL), launched 00:00Z, 8.7 hours before the alert went out and 218 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
- 4 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 463 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| Sep 1, 12:48 AM CDT | Severe Thunderstorm Watch | SPC | Beltrami, Clearwater, Kittson, Lake of the Woods, Mahnomen, Marshall and 5 more | 6 hr |
| Sep 1, 6:39 AM CDT | Mesoscale Discussion | SPC | Beltrami, Cass, Clearwater, Hubbard, Itasca, Koochiching and 1 more | 36 min |
| Aug 31, 8:24 PM CDT | Mesoscale Discussion | SPC | Billings, Bottineau, Burke, Divide, Dunn, Golden Valley and 10 more | 66 min |
| Aug 31, 8:53 PM CDT | Severe Thunderstorm Watch | SPC | Billings, Bottineau, Burke, Burleigh, Divide, Dunn and 19 more | 7 hr |
| Aug 31, 10:54 PM CDT | Mesoscale Discussion | SPC | Bottineau, Burke, Burleigh, Hettinger, McHenry, McLean and 9 more | 96 min |
| Sep 1, 12:02 AM CDT | Mesoscale Discussion | SPC | Benson, Bottineau, Burleigh, Eddy, Foster, Griggs and 14 more | 58 min |
Nearby
Mesoscale Discussions in Minnesota, 2011Mesoscale Discussions in North Dakota, 2011Every mesoscale discussion in 2011
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.