This alert expired on 2 September 2026 at 11:00 UTC. It is kept here as a record.
It is the 6th strongest of the 12 detections recorded within 20 km of this point since 4 April 2026. The last comparable one was on 31 August 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 2 at 6:04AM EDT until September 2 at 7:00AM EDT by NWS Detroit/Pontiac MI
An estimated 201,439 people live within 50 km of this point.
Nearby, since 4 April 2026
- June 9, 2026 · score 67 · 5.6 km
- September 2, 2026 · score 37 · 6.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100, at 82 % 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) | 37 / 100 |
| Our confidence | 82% |
| Coordinates | 43.1300, -83.6960 |
| Nearest City | Flint (13 km) |
| Population Exposed | 201.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T10:04:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a8738131fa10c154b4ce7810b0385f92e6374871.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Genesee, MI |
| Headline | Severe Thunderstorm Warning issued September 2 at 6:04AM EDT until September 2 at 7:00AM EDT by NWS Detroit/Pontiac MI |
| Expires | 2026-09-02T07:00:00-04:00 |
| SenderName | NWS Detroit/Pontiac 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.
Want to know when something happens near Flint?
Calamity.live data shows a weather event with CalamityScore 37/100, near Flint (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.