This alert expired on 11 June 2026 at 04:00 UTC. It is kept here as a record.
It is the 95th strongest of the 126 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued June 10 at 10:19PM EDT until June 11 at 12:00AM EDT by NWS Gaylord MI
Nearby, since 10 March 2026
- March 16, 2026 · score 22 · 0.0 km
- March 11, 2026 · score 16 · 0.0 km
- August 9, 2026 · score 22 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 60 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 44.3000, -85.6000 |
| Nearest City | Traverse City (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-11T02:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.b15d0b3306f9eec9701f1006d159b01e |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Sturgeon Pt to Alabaster MI; Lake Huron from Sturgeon Point to Alabaster MI 5NM off shore to US/Canadian border; St. Clair River; Detroit River; Lake St. Clair Open Lake (U.S. Portion); Michigan Waters of Lake Erie from Detroit River to North Cape MI; Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay; Inner Saginaw Bay SW of Point Au Gres to Bay Port MI; Port Austin to Harbor Beach MI; Harbor Beach to Port Sanilac MI; Port Sanilac to Port Huron MI; Lake Huron from Port Austin to Harbor Beach 5NM Off Shore to the US/Canadian border; Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border; Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border; Bay, MI; Genesee, MI; Huron, MI; Lapeer, MI; Lenawee, MI; Livingston, MI; Macomb, MI; Midland, MI; Monroe, MI; Oakland, MI; Saginaw, MI; St. Clair, MI; Sanilac, MI; Shiawassee, MI; Tuscola, MI; Washtenaw, MI; Wayne, MI |
| Headline | Severe Thunderstorm Watch issued June 10 at 10:19PM EDT until June 11 at 12:00AM EDT by NWS Gaylord MI |
| Expires | 2026-06-11T00:00:00-04:00 |
| SenderName | NWS Gaylord MI |
| HasExactCoords | false |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b15d0b3306f9eec9701f1006d159b01e10156cb5.002.1","noaa_urn:oid:2.49.0.1.840.0.a43b7081757062f045c72c9379e4e493616d3080.002.1","noaa_urn:oid:2.49.0.1.840.0.a43b7081757062f045c72c9379e4e493616d3080.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Calamity.live data shows a weather event with CalamityScore 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.