Alert archive / Minnesota / Mesoscale Discussions in 2005
Mesoscale Discussion 1940
The Storm Prediction Center issued this mesoscale discussion at Aug 8, 2005, 4:51 AM CDT for 31 counties in Minnesota; 7 counties in Wisconsin. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2005, 4:51 AM CDT (09:51 UTC)
- Expired
- Aug 8, 2005, 6:45 AM CDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 38 counties
Anoka County, MN, Benton County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Nicollet County, MN, Pine 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, Swift County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Barron County, WI, Burnett County, WI, Dunn County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 61 km from the middle of the area, began a volume at 09:54 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, 9.9 hours before the alert went out and 60 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
- 3207 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 1389 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.8
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 7, 7:54 PM CDT | Mesoscale Discussion | SPC | Aitkin, Anoka, Benton, Carlton, Carver, Chisago and 19 more | 66 min |
| Aug 8, 5:25 AM CDT | Severe Thunderstorm Watch | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 34 more | 6 hr |
| Aug 8, 9:45 AM CDT | Mesoscale Discussion | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 34 more | 90 min |
| Aug 8, 5:51 PM CDT | Mesoscale Discussion | SPC | Chippewa, Lac qui Parle, Lincoln, Lyon, Swift, Yellow Medicine | 84 min |
Nearby
Mesoscale Discussions in Minnesota, 2005Mesoscale Discussions in Wisconsin, 2005Every mesoscale discussion in 2005
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.