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 1 July 2026 at 01:00 UTC. It is kept here as a record.
No stronger detection stands among the 28 recorded within 20 km of this point since 15 March 2026 — 23 others scored the same. The last comparable one was on 30 June 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 30 at 8:10PM EDT until June 30 at 9:00PM EDT by NWS Marquette MI
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 64 % 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 | 64% |
| Coordinates | 46.5945, -86.4664 |
| Nearest City | Marquette (72 km) |
| Impact Tier | minor |
| Timestamp | 2026-07-01T00:10:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a9b39bdc191cc5d87ed5ea2a88f933ee9cb709cf.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Marquette to Munising MI; Munising to Grand Marais MI; Grand Marais to Whitefish Point MI; 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; Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border |
| Headline | Special Marine Warning issued June 30 at 8:10PM EDT until June 30 at 9:00PM EDT by NWS Marquette MI |
| Expires | 2026-06-30T21:00:00-04:00 |
| SenderName | NWS Marquette MI |
| HasExactCoords | true |
| Iem TypeSummary | I |
| Iem Magnitude | 109 |
| Iem Unit | F |
| Iem City | 7 NNE Round Lake |
| Iem County | Alger |
| Iem State | MI |
| Iem Wfo | MQT |
| Iem Remark | Mesonet station DOEM4 Doe Lake RAWS. |
| MergedSources | [{"id":"iem_I_46.250_-86.710_1782844320000","source":"iem","severity":"low","severityValue":25,"timestamp":1782844320000,"latitude":46.25,"longitude":-86.71}] |
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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