Right now
The most recent data we hold from SPC arrived 4 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
3 other detections within 20 km in the last 24 hours, the nearest 8 km from here.
Reported by SPC 78 days ago.
No stronger detection stands among the 71 recorded within 20 km of this point since 16 March 2026 — 18 others scored the same. Another comparable one was recorded here earlier the same day. 16 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near Chassell, Houghton, MI. Multiple reports of trees down. Time estimated from radar. (MQT)
How we know
2 recorded sources include SPC; independence is not established by this count.
Our own score for this event is 22 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 | Medium |
| Calamity Score (ours) | 22 / 100 |
| Legacy data-support index | 0.66/1 |
| Coordinates | 47.0300, -88.5300 |
| Nearest City | Marquette (102 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-30T01:23:58.894Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
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: spc. Occurrence: 2026-06-30T01:23:58.894Z.
First archived: 2026-06-30T01:28:51.573Z. 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
| ReportType | wind |
| Speed | UNK |
| Location | Chassell |
| County | Houghton |
| State | MI |
| Comments | Multiple reports of trees down. Time estimated from radar. (MQT) |
| Iem TypeSummary | D |
| Iem City | Chassell |
| Iem County | Houghton |
| Iem State | MI |
| Iem Wfo | MQT |
| Iem Remark | Multiple reports of trees down. Time estimated from radar. |
| MergedSources | [{"id":"iem_D_47.030_-88.530_1782770640000","source":"iem","severity":"low","severityValue":25,"timestamp":1782770640000,"latitude":47.03,"longitude":-88.53}] |
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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