Alert archive / Minnesota / Mesoscale Discussions in 2026
Mesoscale Discussion 413
The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2026, 8:16 PM CDT for 10 counties in Iowa; 11 counties in Minnesota. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Apr 13, 2026, 8:16 PM CDT (01:16 UTC)
- Expired
- Apr 13, 2026, 9:45 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
- Concerning
- Tornado watch 103
All 21 counties
Cerro Gordo County, IA, Chickasaw County, IA, Floyd County, IA, Hancock County, IA, Howard County, IA, Kossuth County, IA, Mitchell County, IA, Palo Alto County, IA, Winnebago County, IA, Worth County, IA, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Mower County, MN, Olmsted County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Winona County, MN
The radar
The Minneapolis radar (KMPX), 139 km from the middle of the area, began a volume at 01:20 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, 1.3 hours before the alert went out and 140 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
- 141 J/kg
- Mixed-layer CIN
- -175 J/kg
- Mixed-layer LCL
- 1158 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 142 m²/s²
- 0-3 km storm-relative helicity
- 183 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.2
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 |
|---|---|---|---|---|
| Apr 13, 9:15 PM CDT | Mesoscale Discussion | SPC | Allamakee, Howard, Mitchell, Winneshiek | 60 min |
| Apr 13, 9:42 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 5 hr |
| Apr 14, 12:56 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 29 more | 2 hr |
| Apr 14, 2:33 PM CDT | Tornado Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 38 more | 9 hr |
| Apr 14, 3:42 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Clayton and 8 more | 93 min |
| Apr 14, 6:36 PM CDT | Mesoscale Discussion | SPC | Dubuque, Jackson, Jones | 114 min |
Nearby
Mesoscale Discussions in Minnesota, 2026Mesoscale Discussions in Iowa, 2026Every mesoscale discussion in 2026
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.