Alert archive / Minnesota / Mesoscale Discussions in 2016
Mesoscale Discussion 1723
The Storm Prediction Center issued this mesoscale discussion at Sep 20, 2016, 8:01 PM CDT for 5 counties in Iowa; 27 counties in Minnesota; 11 counties in Wisconsin. It was in force for 119 min.
The area
The outline as issued.
The facts
- Issued
- Sep 20, 2016, 8:01 PM CDT (01:01 UTC)
- Expired
- Sep 20, 2016, 10:00 PM CDT
- In force
- 119 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 43 counties
Allamakee County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Worth County, IA, Blue Earth County, MN, Brown County, MN, Carver County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Houston County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Watonwan County, MN, Winona County, MN, Buffalo County, WI, Crawford County, WI, Eau Claire County, WI, Jackson County, WI, La Crosse County, WI, Monroe County, WI, Pepin County, WI, Pierce County, WI, Richland County, WI, Trempealeau County, WI, Vernon County, WI
The radar
The Minneapolis radar (KMPX), 93 km from the middle of the area, began a volume at 01:03 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
Minneapolis, MN (KMPX), launched 00:00Z, 1.0 hours before the alert went out and 94 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1882 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 230 m²/s²
- 0-3 km storm-relative helicity
- 662 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
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 |
|---|---|---|---|---|
| Sep 20, 9:34 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Cerro Gordo, Chickasaw, Clayton, Fayette, Floyd and 6 more | 5 hr |
| Sep 20, 11:26 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Howard, Winneshiek | 2 hr |
| Sep 21, 1:33 AM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Winneshiek | 117 min |
| Sep 21, 2:00 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 56 more | 2 hr |
| Sep 21, 6:01 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 10 more | 2 hr |
| Sep 21, 2:31 PM CDT | Mesoscale Discussion | SPC | Anoka, Carver, Chippewa, Chisago, Dakota, Goodhue and 15 more | 89 min |
Nearby
Mesoscale Discussions in Minnesota, 2016Mesoscale Discussions in Wisconsin, 2016Mesoscale Discussions in Iowa, 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.