Alert archive / Minnesota / Mesoscale Discussions in 2011
Mesoscale Discussion 1463
The Storm Prediction Center issued this mesoscale discussion at Jul 1, 2011, 5:03 PM CDT for 20 counties in Minnesota; 6 counties in Wisconsin. It was in force for 57 min.
The area
The outline as issued.
The facts
- Issued
- Jul 1, 2011, 5:03 PM CDT (22:03 UTC)
- Expired
- Jul 1, 2011, 6:00 PM CDT
- In force
- 57 min
- Issued by
- the Storm Prediction Center
All 26 counties
Anoka County, MN, Benton County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Pine County, MN, Ramsey County, MN, Renville County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Washington County, MN, Wright County, MN, Barron County, WI, Burnett County, WI, Dunn County, WI, Polk County, WI, Saint Croix County, WI, Washburn County, WI
The radar
The Minneapolis radar (KMPX), 39 km from the middle of the area, began a volume at 22:04 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, 10.1 hours before the alert went out and 39 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
- 3970 J/kg
- Mixed-layer CIN
- -245 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
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 |
|---|---|---|---|---|
| Jul 1, 12:59 PM CDT | Mesoscale Discussion | SPC | Big Stone, Brown, Chippewa, Cottonwood, Jackson, Kandiyohi and 13 more | 61 min |
| Jul 1, 2:08 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Anoka, Benton, Big Stone, Blue Earth, Brown and 51 more | 9 hr |
| Jul 1, 6:36 PM CDT | Mesoscale Discussion | SPC | Aitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 34 more | 114 min |
Nearby
Mesoscale Discussions in Minnesota, 2011Mesoscale Discussions in Wisconsin, 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.