Right now
The most recent data we hold from NOAA arrived 7 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 24 June 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 16 March 2026 — 10 others scored the same. The last comparable one was on 16 June 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 24 at 5:39PM EDT until June 24 at 6:45PM EDT by NWS Gaylord MI
Nearby, since 16 March 2026
- May 18, 2026 · score 22 · 7.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 56 % 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) | 22 / 100 |
| Our confidence | 56% |
| Coordinates | 45.4000, -83.4730 |
| Nearest City | Sault Ste. Marie (141 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-24T21:39:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.8695fae6ad2dd3c19ae0f1fc484ffa941fcb66fb.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island; Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary; Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt to the US/Canadian border beyond 5 NM from shore |
| Headline | Special Marine Warning issued June 24 at 5:39PM EDT until June 24 at 6:45PM EDT by NWS Gaylord MI |
| Expires | 2026-06-24T18:45:00-04:00 |
| 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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (Canada), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.