Right now
The most recent data we hold from NOAA arrived 10 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 6 June 2026 at 05:30 UTC. It is kept here as a record.
It is the 3rd strongest of the 60 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 18 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 6 at 12:26AM EDT until June 6 at 1:30AM EDT by NWS Gaylord MI
An estimated 15,218 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 29, 2026 · score 40 · 7.9 km
- June 6, 2026 · score 34 · 17.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 81 % 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) | 34 / 100 |
| Our confidence | 81% |
| Coordinates | 45.1726, -85.3684 |
| Nearest City | Traverse City (50 km) |
| Population Exposed | 15.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T04:26:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a34944f7d94d5ac79e5ed05451b13c70540a73ce.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI; 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 6 at 12:26AM EDT until June 6 at 1:30AM EDT by NWS Gaylord MI |
| Expires | 2026-06-06T01:30:00-04:00 |
| 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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