Alert archive / Minnesota / Mesoscale Discussions in 2018
Mesoscale Discussion 1047
The Storm Prediction Center issued this mesoscale discussion at Jul 12, 2018, 7:35 PM CDT for 24 counties in Minnesota; 22 counties in Wisconsin. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2018, 7:35 PM CDT (00:35 UTC)
- Expired
- Jul 12, 2018, 9:00 PM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 46 counties
Blue Earth County, MN, Brown County, MN, Carver County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Goodhue County, MN, Hennepin County, MN, Jackson County, MN, Le Sueur County, MN, Martin County, MN, Nicollet County, MN, Olmsted County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Winona County, MN, Adams County, WI, Barron County, WI, Buffalo County, WI, Chippewa County, WI, Clark County, WI, Dunn County, WI, Eau Claire County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Lincoln County, WI, Marathon County, WI, Monroe County, WI, Pepin County, WI, Pierce County, WI, Portage County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Taylor County, WI, Trempealeau County, WI, Wood County, WI
The radar
The Minneapolis radar (KMPX), 111 km from the middle of the area, began a volume at 00:37 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, 0.6 hours before the alert went out and 113 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
- 487 J/kg
- Mixed-layer CIN
- -170 J/kg
- Mixed-layer LCL
- 876 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -75 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 9:39 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Dodge, Faribault, Fillmore, Freeborn, Goodhue and 13 more | 96 min |
| Jul 13, 12:41 PM CDT | Mesoscale Discussion | SPC | Fillmore | 94 min |
| Jul 13, 3:54 PM CDT | Severe Thunderstorm Watch | SPC | Fillmore, Houston | 6 hr |
| Jul 12, 8:14 PM CDT | Severe Thunderstorm Watch | SPC | Langlade, Lincoln, Marathon, Menominee, Portage, Shawano and 3 more | 2 hr |
| Jul 13, 6:23 PM CDT | Mesoscale Discussion | SPC | Calumet, Columbia, Dane, Dodge, Fond du Lac, Grant and 15 more | 2 hr |
Nearby
Mesoscale Discussions in Minnesota, 2018Mesoscale Discussions in Wisconsin, 2018Every mesoscale discussion in 2018
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.