Right now
The most recent data we hold from NOAA arrived 44 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 29 June 2026 at 11:45 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 29 June 2026 — one other scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 29 at 7:13AM EDT until June 29 at 7:45AM EDT by NWS Marquette MI
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 28 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 | High |
| Calamity Score (ours) | 28 / 100 |
| Legacy data-support index | 0.65/1 |
| Coordinates | 45.5883, -86.3367 |
| Nearest City | Traverse City (108 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-29T11:13:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d62c5cbf04f959cc48f6cd650d2fc76ab38baeb5.001.1 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-29T11:13:00.000Z.
First archived: 2026-06-29T11:18:45.251Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Seul Choix Point to Point Detour MI; 5NM East of a line from Fairport MI to Rock Island Passage; Lake Michigan from Seul Choix Point to Rock Island Passage 5NM offshore to Mid Lake |
| Headline | Special Marine Warning issued June 29 at 7:13AM EDT until June 29 at 7:45AM EDT by NWS Marquette MI |
| Expires | 2026-06-29T07:45:00-04:00 |
| SenderName | NWS Marquette MI |
| HasExactCoords | true |
| Spc ReportType | hail |
| Spc Speed | 125 |
| Spc Location | 2 E Sister Bay |
| Spc County | Door |
| Spc State | WI |
| Spc Comments | Report from mPING: Half Dollar (1.25 in.) Time estimated from radar. (GRB) |
| MergedSources | [{"id":"spc_hail_45.19_-87.06_53","source":"spc","severity":"high","severityValue":65,"timestamp":1782723900000,"latitude":45.19,"longitude":-87.06}] |
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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