Alert archive / Minnesota / Mesoscale Discussions in 2014
Mesoscale Discussion 1592
The Storm Prediction Center issued this mesoscale discussion at Aug 21, 2014, 3:58 AM CDT for Dickinson County, Emmet County, Osceola County, Iowa; 35 counties in Minnesota. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Aug 21, 2014, 3:58 AM CDT (08:58 UTC)
- Expired
- Aug 21, 2014, 5:30 AM CDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 38 counties
Dickinson County, IA, Emmet County, IA, Osceola 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, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Swift County, MN, Wabasha County, MN, Waseca County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN
The radar
The Minneapolis radar (KMPX), 105 km from the middle of the area, began a volume at 08:58 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, 9.0 hours before the alert went out and 103 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
- 397 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1160 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 162 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 20, 9:07 PM CDT | Mesoscale Discussion | SPC | Lyon, Plymouth, Sioux | 2 hr |
| Aug 21, 5:15 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Cerro Gordo, Chickasaw, Clayton, Fayette, Floyd and 6 more | 5 hr |
| Aug 21, 9:04 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 31 more | 86 min |
| Aug 21, 12:29 AM CDT | Mesoscale Discussion | SPC | Benton, Big Stone, Blue Earth, Brown, Carver, Chippewa and 32 more | 2 hr |
| Aug 21, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Brown, Carver, Chippewa, Douglas, Faribault and 22 more | 6 hr |
Nearby
Mesoscale Discussions in Minnesota, 2014Mesoscale Discussions in Iowa, 2014Every mesoscale discussion in 2014
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.