Reported by SPC today.
It is the 11th strongest of the 72 detections recorded within 20 km of this point since 15 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind UNK kt near 4 W Whitmore Lake, Livingston, MI. Tree damage in the neighborhood of Strawberry Lake and West Lane (DTX)
An estimated 1,073,767 people live within 50 km of this point.
Nearby, since 15 April 2026
- September 4, 2026 · score 46 · 0.0 km
- September 3, 2026 · score 76 · 2.0 km
- July 3, 2026 · score 48 · 7.9 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 46 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 90% |
| Coordinates | 42.4300, -83.8200 |
| Nearest City | Ann Arbor (18 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T19:40:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 4 W Whitmore Lake |
| County | Livingston |
| State | MI |
| Comments | Tree damage in the neighborhood of Strawberry Lake and West Lane (DTX) |
| Iem TypeSummary | D |
| Iem City | 4 W Whitmore Lake |
| Iem County | Livingston |
| Iem State | MI |
| Iem Wfo | DTX |
| Iem Remark | Tree damage in the neighborhood of Strawberry Lake and West Lane |
| MergedSources | [{"id":"iem_D_42.430_-83.820_1788464400000","source":"iem","severity":"low","severityValue":25,"timestamp":1788464400000,"latitude":42.43,"longitude":-83.82}] |
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.
Want to know when something happens near Ann Arbor?
Calamity.live data shows a weather event with CalamityScore 46/100, near Ann Arbor (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.