Alert archive / Michigan / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 131, NWS Northern Indiana

May 4, 2026Berrien County, Cass County, Michigan

NWS Northern Indiana issued this severe thunderstorm warning at May 4, 2026, 7:25 PM EDT for Berrien County, Cass County, Michigan. It was in force for 10 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 4, 2026, 7:25 PM EDT (23:25 UTC)
Expired: May 4, 2026, 7:35 PM EDT
In force: 10 min
Issued by: NWS Northern Indiana
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Berrien County, MI, Cass County, MI

The radar

The Northern Indiana radar (KIWX), 75 km from the middle of the area, began a volume at 23:27 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 12:00Z, 11.4 hours before the alert went out and 245 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1501 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 237 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Northern Indiana wrote its last area forecast discussion before this severe thunderstorm warning went out at May 4, 3:13 PM EDT, 4 hours 12 minutes earlier.

Area forecast discussion, May 4, 3:13 PM EDT, 4 hours 12 minutes before

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In the hours before

Local storm report, May 4, 6:24 PM EDT, 1 hour 1 minute before

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Local storm report, May 4, 7:03 PM EDT, 22 minutes before

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Special weather statement, May 4, 7:14 PM EDT, 11 minutes before

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Local storm report, May 4, 7:17 PM EDT, 8 minutes before

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Local storm report, May 4, 7:21 PM EDT, 4 minutes before

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Local storm report, May 4, 7:25 PM EDT, 0 minutes before

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The office that day

Everything else NWS Northern Indiana issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 4, 3:33 AM EDT	Small Craft Advisory	IWX		16 hr
May 4, 6:31 PM EDT	Special Marine Warning	IWX		29 min
May 4, 6:53 PM EDT	Severe Thunderstorm Warning	IWX	LaPorte	23 min
May 4, 6:59 PM EDT	Special Marine Warning	IWX		19 min
May 4, 5:02 PM EDT	Special Weather Statement	IWX	Branch	43 min
May 4, 5:30 PM EDT	Special Weather Statement	IWX	Cass	30 min
May 4, 5:36 PM EDT	Special Weather Statement	IWX	Branch, Hillsdale	39 min
May 4, 5:57 PM EDT	Special Weather Statement	IWX	Branch	48 min
May 4, 6:19 PM EDT	Special Weather Statement	IWX	Cass	41 min
May 4, 7:14 PM EDT	Special Weather Statement	IWX	Berrien, Cass, Saint Joseph	46 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2026 Every severe thunderstorm warning 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.