Alert archive / Michigan / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 69, NWS Detroit, MI

June 11, 2026Lenawee County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Jun 11, 2026, 11:49 PM EDT for Lenawee County, Michigan. It was in force for 56 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: Jun 11, 2026, 11:49 PM EDT (03:49 UTC)
Expired: Jun 12, 2026, 12:45 AM EDT
In force: 56 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Tornado: Possible
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

County Lenawee County, MI

The radar

The Detroit radar (KDTX), 102 km from the middle of the area, began a volume at 03:49 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 11, 8:08 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 00:00Z, 3.8 hours before the alert went out and 106 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

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 Detroit, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 11, 7:08 PM EDT, 4 hours 41 minutes earlier.

Area forecast discussion, Jun 11, 7:08 PM EDT, 4 hours 41 minutes before

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Hazardous weather outlook, Jun 11, 3:19 PM EDT, 8 hours 30 minutes before

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The office that day

Everything else NWS Detroit, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 11, 10:22 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Shiawassee	53 min
Jun 11, 10:46 PM EDT	Severe Thunderstorm Warning	DTX	Genesee	39 min
Jun 11, 11:15 PM EDT	Special Weather Statement	DTX	Oakland	60 min
Jun 12, 12:10 AM EDT	Severe Thunderstorm Warning	DTX	Washtenaw	52 min
Jun 12, 12:20 AM EDT	Special Marine Warning	DTX		85 min
Jun 12, 12:43 AM EDT	Special Weather Statement	DTX	Monroe, Wayne	62 min
Jun 12, 1:05 AM EDT	Special Marine Warning	DTX		55 min
Jun 12, 1:18 AM EDT	Special Weather Statement	DTX	Macomb, Saint Clair	57 min
Jun 12, 3:34 AM EDT	Beach Hazards Statement	DTX	Huron	8 hr
Jun 12, 3:42 PM EDT	Small Craft Advisory	DTX		30 hr

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.