Alert archive / Minnesota / Mesoscale Discussions in 2008
Mesoscale Discussion 1973
The Storm Prediction Center issued this mesoscale discussion at Jul 31, 2008, 6:50 AM CDT for 4 states. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Jul 31, 2008, 6:50 AM CDT (11:50 UTC)
- Expired
- Jul 31, 2008, 8:15 AM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 67 counties
Allamakee County, IA, Bremer County, IA, Butler County, IA, Cerro Gordo County, IA, Chickasaw County, IA, Clayton County, IA, Emmet County, IA, Fayette County, IA, Floyd County, IA, Hancock County, IA, Howard County, IA, Kossuth County, IA, Mitchell County, IA, Winnebago County, IA, Winneshiek County, IA, Worth County, IA, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa 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, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mower County, MN, Murray County, MN, Nicollet County, MN, Olmsted County, MN, Pipestone County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Swift County, MN, Wabasha County, MN, Waseca County, MN, Watonwan County, MN, Winona County, MN, Wright County, MN, Yellow Medicine County, MN, Moody County, SD, Buffalo County, WI, Crawford County, WI, Grant County, WI, Iowa County, WI, La Crosse County, WI, Pierce County, WI, Richland County, WI, Trempealeau County, WI, Vernon County, WI
The radar
The Minneapolis radar (KMPX), 95 km from the middle of the area, began a volume at 11:52 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, 11.8 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
- 148 J/kg
- Mixed-layer CIN
- -303 J/kg
- Mixed-layer LCL
- 1998 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 147 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 |
|---|---|---|---|---|
| Jul 31, 12:50 AM CDT | Mesoscale Discussion | SPC | Lyon | 85 min |
| Jul 31, 7:18 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more | 6 hr |
| Jul 31, 8:03 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more | 87 min |
| Jul 31, 10:28 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 20 more | 92 min |
| Jul 31, 3:51 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cedar and 23 more | 84 min |
| Jul 31, 6:30 PM CDT | Mesoscale Discussion | SPC | Adair, Appanoose, Audubon, Benton, Black Hawk, Boone and 50 more | 90 min |
| Jul 31, 1:23 AM CDT | Severe Thunderstorm Watch | SPC | Big Stone, Traverse | 5 hr |
| Jul 31, 3:30 AM CDT | Mesoscale Discussion | SPC | Big Stone, Lac qui Parle, Lincoln, Pipestone, Rock, Yellow Medicine | 90 min |
| Jul 31, 4:51 AM CDT | Severe Thunderstorm Watch | SPC | Anoka, Blue Earth, Brown, Carver, Chippewa, Cottonwood and 30 more | 4 hr |
| Jul 31, 5:28 AM CDT | Mesoscale Discussion | SPC | Big Stone, Blue Earth, Brown, Chippewa, Cottonwood, Faribault and 17 more | 92 min |
| Jul 30, 7:04 PM CDT | Mesoscale Discussion | SPC | Campbell, Corson, Dewey, Edmunds, Hughes, Hyde and 5 more | 56 min |
| Jul 31, 11:59 AM CDT | Severe Thunderstorm Watch | SPC | Dane, Green, Kenosha, Racine, Rock, Walworth | 5 hr |
| Jul 31, 1:51 PM CDT | Mesoscale Discussion | SPC | Dane, Green, Kenosha, Rock, Walworth | 84 min |
Nearby
Mesoscale Discussions in Minnesota, 2008Mesoscale Discussions in Iowa, 2008Mesoscale Discussions in Wisconsin, 2008Every mesoscale discussion in 2008
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.