Alert archive / Minnesota / Mesoscale Discussions in 2011
Mesoscale Discussion 1763
The Storm Prediction Center issued this mesoscale discussion at Jul 27, 2011, 2:49 AM CDT for 4 counties in Iowa; 35 counties in Minnesota; Pierce County, Saint Croix County, Wisconsin. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Jul 27, 2011, 2:49 AM CDT (07:49 UTC)
- Expired
- Jul 27, 2011, 3:45 AM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 41 counties
Dickinson County, IA, Emmet County, IA, Lyon County, IA, Osceola County, IA, Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver 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, Jackson County, MN, Le Sueur County, MN, Lyon County, MN, Martin County, MN, McLeod County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Rock County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Steele County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 97 km from the middle of the area, began a volume at 07:50 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 nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 7.8 hours before the alert went out and 95 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
- 1713 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 98 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 27, 6:54 PM CDT | Mesoscale Discussion | SPC | Clayton, Clinton, Delaware, Dubuque, Jackson, Jones | 66 min |
| Jul 26, 7:24 PM CDT | Mesoscale Discussion | SPC | Big Stone, Grant, Stevens, Traverse, Wilkin | 36 min |
| Jul 26, 7:32 PM CDT | Tornado Watch | SPC | Big Stone, Chippewa, Douglas, Grant, Lac qui Parle, Otter Tail and 6 more | 5 hr |
| Jul 26, 8:10 PM CDT | Mesoscale Discussion | SPC | Big Stone, Douglas, Grant, Lac qui Parle, Otter Tail, Pope and 4 more | 95 min |
| Jul 26, 8:17 PM CDT | Severe Thunderstorm Watch | SPC | Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more | 8 hr |
| Jul 26, 9:53 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Brown, Carver, Chippewa, Cottonwood, Dakota and 37 more | 67 min |
| Jul 26, 10:10 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 30 more | 8 hr |
Nearby
Mesoscale Discussions in Minnesota, 2011Mesoscale Discussions in Iowa, 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.