Alert archive / Indiana / Mesoscale Discussions in 2026

Mesoscale Discussion 397

April 13, 20264 counties in Illinois; 24 counties in Indiana; 4 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2026, 2:06 PM CDT for 4 counties in Illinois; 24 counties in Indiana; 4 counties in Michigan. It was in force for 24 min.

The area

The outline as issued.

The facts

Issued: Apr 13, 2026, 2:06 PM CDT (19:06 UTC)
Expired: Apr 13, 2026, 2:30 PM CDT
In force: 24 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch needed soon
Chance of a watch: 95%

All 32 counties

Grundy County, IL, Iroquois County, IL, Kankakee County, IL, Will County, IL, Allen County, IN, Benton County, IN, Cass County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Huntington County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Newton County, IN, Noble County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Wabash County, IN, White County, IN, Whitley County, IN, Berrien County, MI, Branch County, MI, Cass County, MI, Saint Joseph County, MI

The radar

The Northern Indiana radar (KIWX), 76 km from the middle of the area, began a volume at 19:06 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.

Severe Thunderstorm Watch 102Apr 13, 2:10 PM CDT

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 13, 11:03 AM CDT	Mesoscale Discussion	SPC	Bureau, Carroll, DeKalb, Fulton, Hancock, Henderson and 24 more	87 min
Apr 13, 2:09 PM CDT	Severe Thunderstorm Watch	SPC	Iroquois, Kankakee, Will	5 hr
Apr 13, 3:38 PM CDT	Mesoscale Discussion	SPC	Allen, DeKalb, Elkhart, Fulton, Jasper, Kosciusko and 11 more	97 min
Apr 13, 5:09 PM CDT	Mesoscale Discussion	SPC	Allen, DeKalb, Elkhart, Kosciusko, LaGrange, Noble and 2 more	96 min
Apr 13, 4:48 PM CDT	Mesoscale Discussion	SPC	Menominee	117 min

Nearby

Mesoscale Discussions in Indiana, 2026 Mesoscale Discussions in Illinois, 2026 Mesoscale Discussions in Michigan, 2026 Every 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; radar from the NEXRAD Level II archive.