Alert archive / Indiana / Mesoscale Discussions in 2026

Mesoscale Discussion 403

April 13, 202617 counties in Indiana; 4 counties in Michigan

The Storm Prediction Center issued this mesoscale discussion at Apr 13, 2026, 4:38 PM EDT for 17 counties in Indiana; 4 counties in Michigan. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Apr 13, 2026, 4:38 PM EDT (20:38 UTC)
Expired: Apr 13, 2026, 6:15 PM EDT
In force: 97 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 102

All 21 counties

Allen County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Jasper County, IN, Kosciusko County, IN, LaGrange County, IN, LaPorte County, IN, Marshall County, IN, Newton County, IN, Noble County, IN, Porter County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben 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), 38 km from the middle of the area, began a volume at 20:36 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 13, 3:06 PM EDT	Mesoscale Discussion	SPC	Allen, Benton, Cass, DeKalb, Elkhart, Fulton and 18 more	24 min
Apr 13, 3:09 PM EDT	Severe Thunderstorm Watch	SPC	Allen, Benton, DeKalb, Elkhart, Fulton, Jasper and 14 more	5 hr
Apr 13, 6:09 PM EDT	Mesoscale Discussion	SPC	Allen, DeKalb, Elkhart, Kosciusko, LaGrange, Noble and 2 more	96 min
Apr 13, 5:48 PM EDT	Mesoscale Discussion	SPC	Menominee	117 min

Nearby

Mesoscale Discussions in Indiana, 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.