Alert archive / Minnesota / Mesoscale Discussions in 2017
Mesoscale Discussion 253
The Storm Prediction Center issued this mesoscale discussion at Mar 6, 2017, 1:37 PM CST for 39 counties in Minnesota; Pierce County, Polk County, Saint Croix County, Wisconsin. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 6, 2017, 1:37 PM CST (19:37 UTC)
- Expired
- Mar 6, 2017, 4:00 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 42 counties
Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Nicollet County, MN, Olmsted County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Swift County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Pierce County, WI, Polk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 16 km from the middle of the area, began a volume at 19:38 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 12:00Z, 7.6 hours before the alert went out and 15 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
- 622 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 401 m²/s²
- 0-3 km storm-relative helicity
- 365 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 |
|---|---|---|---|---|
| Mar 6, 2:43 PM CST | Tornado Watch | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 38 more | 7 hr |
| Mar 6, 3:35 PM CST | Mesoscale Discussion | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Cottonwood and 29 more | 115 min |
| Mar 6, 5:03 PM CST | Mesoscale Discussion | SPC | Aitkin, Carlton, Cass, Crow Wing, Hubbard, Pine | 57 min |
Nearby
Mesoscale Discussions in Minnesota, 2017Mesoscale Discussions in Wisconsin, 2017Every mesoscale discussion in 2017
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.