Right now
The most recent data we hold from NOAA arrived 9 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 11 June 2026 at 01:00 UTC. It is kept here as a record.
It is the 4th strongest of the 21 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 23 May 2026.
What the source measured
NOAA reported: Special Marine Warning issued June 10 at 8:16PM EDT until June 10 at 9:00PM EDT by NWS Gaylord MI
Nearby, since 15 March 2026
- July 18, 2026 · score 22 · 15.3 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 59 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 59% |
| Coordinates | 45.8426, -84.8784 |
| Nearest City | Sault Ste. Marie (86 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-11T00:16:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.88caac30ab78b037a05819a8c5a4deccc1a5a333.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island; Seul Choix Point to 5NM West of Mackinac Bridge; Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay; Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and North of a line from Charlevoix MI to South Fox Island 5NM offshore |
| Headline | Special Marine Warning issued June 10 at 8:16PM EDT until June 10 at 9:00PM EDT by NWS Gaylord MI |
| Expires | 2026-06-10T21:00:00-04:00 |
| SenderName | NWS Gaylord MI |
| HasExactCoords | true |
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 8 March 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.
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