Alert archive / Minnesota / Mesoscale Discussions in 2011
Mesoscale Discussion 2041
The Storm Prediction Center issued this mesoscale discussion at Aug 23, 2011, 3:10 AM CDT for 27 counties in Minnesota; Burnett County, Wisconsin. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 23, 2011, 3:10 AM CDT (08:10 UTC)
- Expired
- Aug 23, 2011, 5:15 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Anoka County, MN, Benton County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Pine County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Swift County, MN, Todd County, MN, Wright County, MN, Yellow Medicine County, MN, Burnett County, WI
The radar
The Minneapolis radar (KMPX), 59 km from the middle of the area, began a volume at 08:13 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, 8.2 hours before the alert went out and 57 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
- 114 J/kg
- Mixed-layer CIN
- -258 J/kg
- Mixed-layer LCL
- 1559 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
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 23, 12:45 AM CDT | Mesoscale Discussion | SPC | Cottonwood, Faribault, Jackson, Martin, Nobles | 2 hr |
| Aug 23, 3:00 AM CDT | Severe Thunderstorm Watch | SPC | Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more | 6 hr |
| Aug 23, 3:34 AM CDT | Severe Thunderstorm Watch | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 34 more | 4 hr |
| Aug 23, 4:55 AM CDT | Mesoscale Discussion | SPC | Anoka, Blue Earth, Brown, Carver, Chisago, Dakota and 28 more | 2 hr |
| Aug 23, 4:56 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Clark, Fond du Lac, Green Lake and 12 more | 94 min |
| Aug 23, 5:19 PM CDT | Tornado Watch | SPC | Adams, Brown, Calumet, Columbia, Dodge, Fond du Lac and 20 more | 6 hr |
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.