Right now
The most recent data we hold from NOAA arrived 16 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
One other detection within 20 km in the last 24 hours, 21 km from here.
This alert expired on 11 June 2026 at 00:30 UTC. It is kept here as a record.
It is the 7th strongest of the 21 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 10 June 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 10 at 8:01PM EDT until June 10 at 8:30PM EDT by NWS Marquette MI
Nearby, since 16 March 2026
- June 10, 2026 · score 16 · 3.7 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 | 47.0240, -87.3820 |
| Nearest City | Marquette (54 km) |
| Impact Tier | minor |
| Timestamp | 2026-06-11T00:01:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2ad6241659bc68e0ad25c707dce870abb9e56fe8.002.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore; Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore |
| Headline | Special Marine Warning issued June 10 at 8:01PM EDT until June 10 at 8:30PM EDT by NWS Marquette MI |
| Expires | 2026-06-10T20:30:00-04:00 |
| SenderName | NWS Marquette 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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