Alert archive / Minnesota / Mesoscale Discussions in 2015
Mesoscale Discussion 1766
The Storm Prediction Center issued this mesoscale discussion at Sep 6, 2015, 6:29 PM CDT for 30 counties in Minnesota; 5 counties in Wisconsin. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 6, 2015, 6:29 PM CDT (23:29 UTC)
- Expired
- Sep 6, 2015, 8:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 35 counties
Aitkin County, MN, Anoka County, MN, Benton County, MN, Carlton County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Crow Wing County, MN, Hennepin County, MN, Isanti County, MN, Itasca County, MN, Kanabec County, MN, Kandiyohi County, MN, Lake County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Pine County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Saint Louis County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Todd County, MN, Washington County, MN, Wright County, MN, Bayfield County, WI, Burnett County, WI, Douglas County, WI, Polk County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 109 km from the middle of the area, began a volume at 23:31 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
Minneapolis, MN (KMPX), launched 12:00Z, 11.5 hours before the alert went out and 151 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
- 394 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 1145 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 272 m²/s²
- 0-3 km storm-relative helicity
- 438 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.2
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 |
|---|---|---|---|---|
| Sep 5, 7:34 PM CDT | Mesoscale Discussion | SPC | Aitkin, Cass, Crow Wing, Douglas, Hubbard, Itasca and 6 more | 86 min |
| Sep 6, 2:31 PM CDT | Mesoscale Discussion | SPC | Aitkin, Anoka, Beltrami, Benton, Blue Earth, Brown and 51 more | 119 min |
| Sep 6, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Anoka, Benton, Carlton, Carver, Cass and 33 more | 6 hr |
| Sep 6, 5:12 PM CDT | Mesoscale Discussion | SPC | Fillmore, Houston, Winona | 2 hr |
| Sep 6, 5:26 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Cottonwood, Faribault, Freeborn, Jackson, Martin and 3 more | 94 min |
| Sep 6, 6:02 PM CDT | Severe Thunderstorm Watch | SPC | Fillmore, Houston, Mower | 7 hr |
Nearby
Mesoscale Discussions in Minnesota, 2015Mesoscale Discussions in Wisconsin, 2015Every mesoscale discussion in 2015
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.