Alert archive / Minnesota / Mesoscale Discussions in 2012
Mesoscale Discussion 1770
The Storm Prediction Center issued this mesoscale discussion at Aug 15, 2012, 8:20 PM CDT for Gogebic County, Michigan; 44 counties in Minnesota; 18 counties in Wisconsin. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Aug 15, 2012, 8:20 PM CDT (01:20 UTC)
- Expired
- Aug 15, 2012, 9:45 PM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 63 counties
Gogebic County, MI, Aitkin County, MN, Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carlton County, MN, Carver County, MN, Chisago County, MN, Cook County, MN, Crow Wing County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Itasca County, MN, Kanabec County, MN, Kandiyohi County, MN, Lake County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Olmsted County, MN, Pine County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Saint Louis County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Ashland County, WI, Barron County, WI, Bayfield County, WI, Buffalo County, WI, Burnett County, WI, Chippewa County, WI, Douglas County, WI, Dunn County, WI, Eau Claire County, WI, Iron County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Sawyer County, WI, Washburn County, WI
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 1.3 hours before the alert went out and 88 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
- 700 J/kg
- Mixed-layer CIN
- -151 J/kg
- Mixed-layer LCL
- 1324 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 5.2
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 |
|---|---|---|---|---|
| Aug 16, 10:01 AM CDT | Mesoscale Discussion | SPC | Branch, Calhoun, Eaton, Hillsdale, Ingham, Jackson and 5 more | 89 min |
| Aug 16, 5:28 PM CDT | Mesoscale Discussion | SPC | Alcona, Allegan, Alpena, Arenac, Barry, Bay and 33 more | 92 min |
| Aug 16, 3:57 AM CDT | Mesoscale Discussion | SPC | Houston | 3 hr |
Nearby
Mesoscale Discussions in Minnesota, 2012Mesoscale Discussions in Wisconsin, 2012Mesoscale Discussions in Michigan, 2012Every mesoscale discussion in 2012
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.