Alert archive / Indiana / Mesoscale Discussions in 2026

Mesoscale Discussion 1102

June 11, 20267 counties in Indiana; Berrien County, Cass County, Michigan

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2026, 8:44 PM EDT for 7 counties in Indiana; Berrien County, Cass County, Michigan. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued: Jun 11, 2026, 8:44 PM EDT (00:44 UTC)
Expired: Jun 11, 2026, 10:15 PM EDT
In force: 91 min
Issued by: the Storm Prediction Center
Concerning: Tornado watch 313...318

Counties Elkhart County, IN, Lake County, IN, LaPorte County, IN, Marshall County, IN, Porter County, IN, Saint Joseph County, IN, Starke County, IN, Berrien County, MI, Cass County, MI

The radar

The Northern Indiana radar (KIWX), 88 km from the middle of the area, began a volume at 00:46 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 nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 0.7 hours before the alert went out and 304 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 161 J/kg
Mixed-layer CIN: -184 J/kg
Mixed-layer LCL: 1444 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 127 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

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
Jun 11, 8:08 PM EDT	Tornado Watch	SPC	Adams, Allen, Blackford, Boone, Carroll, Cass and 29 more	6 hr
Jun 11, 9:19 PM EDT	Mesoscale Discussion	SPC	Benton, Blackford, Boone, Carroll, Cass, Clinton and 19 more	86 min
Jun 11, 9:25 PM EDT	Mesoscale Discussion	SPC	Bartholomew, Brown, Clay, Daviess, Decatur, Delaware and 26 more	65 min
Jun 11, 9:47 PM EDT	Severe Thunderstorm Watch	SPC	Bartholomew, Brown, Clay, Decatur, Delaware, Fayette and 20 more	5 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.