Alert archive / Minnesota / Mesoscale Discussions in 2011
Mesoscale Discussion 1564
The Storm Prediction Center issued this mesoscale discussion at Jul 10, 2011, 7:51 PM CDT for 4 counties in Iowa; 44 counties in Minnesota; 10 counties in Wisconsin. It was in force for 84 min.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2011, 7:51 PM CDT (00:51 UTC)
- Expired
- Jul 10, 2011, 9:15 PM CDT
- In force
- 84 min
- Issued by
- the Storm Prediction Center
All 58 counties
Allamakee County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, 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, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Houston County, MN, Isanti County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Mower 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, Winona County, MN, Wright County, MN, Yellow Medicine County, MN, Buffalo County, WI, Crawford County, WI, Dunn County, WI, Eau Claire County, WI, La Crosse County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI, Trempealeau County, WI, Vernon County, WI
The radar
The Minneapolis radar (KMPX), 40 km from the middle of the area, began a volume at 00:52 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, 0.9 hours before the alert went out and 42 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
- 1401 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 1316 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 10, 9:53 PM CDT | Mesoscale Discussion | SPC | Allamakee, Cerro Gordo, Chickasaw, Dickinson, Emmet, Floyd and 9 more | 67 min |
| Jul 10, 10:10 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw and 13 more | 6 hr |
| Jul 10, 10:27 PM CDT | Mesoscale Discussion | SPC | Cherokee, Harrison, Monona, Plymouth, Sioux, Woodbury | 63 min |
| Jul 10, 10:57 PM CDT | Severe Thunderstorm Watch | SPC | Harrison, Mills, Monona, Montgomery, Pottawattamie, Shelby | 4 hr |
| Jul 10, 11:45 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Cerro Gordo, Chickasaw, Clayton, Delaware and 8 more | 90 min |
| Jul 10, 11:56 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 4 hr |
| Jul 11, 1:08 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 38 more | 13 min |
| Jul 11, 1:21 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 38 more | 4 hr |
| Jul 11, 2:36 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Benton, Black Hawk, Boone, Bremer and 52 more | 114 min |
| Jul 11, 3:30 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Buchanan, Cedar, Chickasaw, Clayton and 18 more | 6 hr |
| Jul 11, 5:07 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clayton, Clinton and 15 more | 113 min |
| Jul 11, 2:07 AM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Clark, Columbia, Dodge and 27 more | 83 min |
| Jul 11, 7:10 AM CDT | Mesoscale Discussion | SPC | Dane, Green, Jefferson, Kenosha, Milwaukee, Racine and 3 more | 95 min |
| Jul 11, 7:50 AM CDT | Mesoscale Discussion | SPC | Kenosha | 55 min |
Nearby
Mesoscale Discussions in Minnesota, 2011Mesoscale Discussions in Wisconsin, 2011Mesoscale Discussions in Iowa, 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.