Alert archive / Minnesota / Mesoscale Discussions in 2007
Mesoscale Discussion 1747
The Storm Prediction Center issued this mesoscale discussion at Aug 13, 2007, 5:11 PM CDT for 43 counties in Minnesota; 5 counties in Wisconsin. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Aug 13, 2007, 5:11 PM CDT (22:11 UTC)
- Expired
- Aug 13, 2007, 6:15 PM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 48 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, 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, Stevens 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, Dunn County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 50 km from the middle of the area, began a volume at 22:12 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, 10.2 hours before the alert went out and 48 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
- 2331 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 56 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 |
|---|---|---|---|---|
| Aug 13, 12:11 PM CDT | Mesoscale Discussion | SPC | Benton, Big Stone, Chippewa, Douglas, Grant, Kandiyohi and 12 more | 94 min |
| Aug 13, 2:18 PM CDT | Mesoscale Discussion | SPC | Becker, Benton, Blue Earth, Brown, Carver, Chippewa and 38 more | 117 min |
| Aug 13, 2:57 PM CDT | Severe Thunderstorm Watch | SPC | Becker, Beltrami, Clay, Clearwater, Grant, Hubbard and 9 more | 6 hr |
| Aug 13, 6:59 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Anoka, Benton, Brown, Carlton, Carver and 29 more | 7 hr |
Nearby
Mesoscale Discussions in Minnesota, 2007Mesoscale Discussions in Wisconsin, 2007Every mesoscale discussion in 2007
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.