Alert archive / Iowa / Mesoscale Discussions in 2025

Mesoscale Discussion 461

April 17, 202515 counties in Iowa; 13 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Apr 17, 2025, 5:56 PM CDT for 15 counties in Iowa; 13 counties in Minnesota. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Apr 17, 2025, 5:56 PM CDT (22:56 UTC)
Expired: Apr 17, 2025, 8:00 PM CDT
In force: 2 hr
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 140

All 28 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Emmet County, IA, Hancock County, IA, Ida County, IA, Kossuth County, IA, O'Brien County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Winnebago County, IA, Woodbury County, IA, Worth County, IA, Blue Earth County, MN, Dodge County, MN, Faribault County, MN, Freeborn County, MN, Le Sueur County, MN, Martin County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Rice County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN

The radar

The Sioux Falls radar (KFSD), 170 km from the middle of the area, began a volume at 22:58 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 text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 17, 12:46 PM CDT	Mesoscale Discussion	SPC	Clay, Dickinson, Emmet, Lyon, O'Brien, Osceola and 1 more	2 hr
Apr 17, 2:53 PM CDT	Mesoscale Discussion	SPC	Crawford, Harrison, Ida, Monona, Sac, Woodbury	2 hr
Apr 17, 3:45 PM CDT	Severe Thunderstorm Watch	SPC	Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 13 more	6 hr
Apr 17, 4:48 PM CDT	Tornado Watch	SPC	Adair, Adams, Audubon, Carroll, Cass, Clarke and 17 more	7 hr
Apr 17, 5:33 PM CDT	Mesoscale Discussion	SPC	Mills, Pottawattamie	87 min

Nearby

Mesoscale Discussions in Iowa, 2025 Mesoscale Discussions in Minnesota, 2025 Every mesoscale discussion in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.