Alert archive / Michigan / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 2, NWS Detroit, MI

March 15, 2025Lenawee County, Michigan

NWS Detroit, MI issued this severe thunderstorm warning at Mar 15, 2025, 4:40 PM EDT for Lenawee County, Michigan. It was in force for 40 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: Mar 15, 2025, 4:40 PM EDT (20:40 UTC)
Expired: Mar 15, 2025, 5:20 PM EDT
In force: 40 min
Issued by: NWS Detroit, MI
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Lenawee County, MI

The radar

The Detroit radar (KDTX), 102 km from the middle of the area, began a volume at 20:42 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, 8.7 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1106 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: 10 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 Detroit, MI wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 15, 3:41 PM EDT, 59 minutes earlier.

Area forecast discussion, Mar 15, 3:41 PM EDT, 59 minutes before

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Hazardous weather outlook, Mar 15, 4:03 PM EDT, 37 minutes before

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In the hours before

Special weather statement, Mar 15, 3:42 PM EDT, 58 minutes before

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Special weather statement, Mar 15, 4:36 PM EDT, 4 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
Mar 15, 12:13 AM EDT	Wind Advisory	DTX	Bay, Genesee, Huron, Lapeer, Lenawee, Livingston and 11 more	23 hr
Mar 15, 3:51 AM EDT	Gale Warning	DTX		18 hr
Mar 15, 5:19 AM EDT	Special Weather Statement	DTX	Bay, Genesee, Lapeer, Saginaw, Shiawassee, Tuscola	56 min
Mar 15, 5:32 AM EDT	Special Weather Statement	DTX	Oakland	58 min
Mar 15, 5:52 AM EDT	Special Weather Statement	DTX	Macomb	38 min
Mar 15, 6:13 AM EDT	Special Weather Statement	DTX	Huron, Sanilac	47 min
Mar 15, 6:21 AM EDT	Special Weather Statement	DTX	Bay, Genesee, Midland, Saginaw, Shiawassee	39 min
Mar 15, 3:20 PM EDT	Gale Warning	DTX		31 hr
Mar 15, 3:42 PM EDT	Special Weather Statement	DTX	Washtenaw	33 min
Mar 15, 4:36 PM EDT	Special Weather Statement	DTX	Lenawee	39 min
Mar 15, 5:00 PM EDT	Severe Thunderstorm Warning	DTX	Lenawee, Monroe, Washtenaw	44 min
Mar 15, 5:25 PM EDT	Special Weather Statement	DTX	Livingston, Oakland	35 min
Mar 15, 5:30 PM EDT	Severe Thunderstorm Warning	DTX	Livingston, Oakland, Wayne	46 min
Mar 15, 5:59 PM EDT	Special Weather Statement	DTX	Lapeer	46 min
Mar 15, 6:26 PM EDT	Special Weather Statement	DTX	Saint Clair	34 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2025 Every severe thunderstorm warning in 2025

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.