Severe Weather near Grosse Pointe Woods
This alert expired on 3 September 2026 at 07:30 UTC. It is kept here as a record.
It is the 35th strongest of the 57 detections recorded within 20 km of this point since 14 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 3 at 2:45AM EDT until September 3 at 3:30AM EDT by NWS Detroit/Pontiac MI
An estimated 3,041,164 people live within 50 km of this point.
Nearby, since 14 April 2026
- September 3, 2026 · score 58 · 0.5 km
- May 18, 2026 · score 52 · 4.1 km
- April 14, 2026 · score 52 · 4.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 46 out of 100, at 87 % 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 | 87% |
| Coordinates | 42.4590, -82.9010 |
| Nearest City | Grosse Pointe Woods (2 km) |
| Population Exposed | 3.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T06:45:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.6799eff65aca55ffee1bf339b6dd7497486b52a1.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Macomb, MI; Wayne, MI |
| Headline | Severe Thunderstorm Warning issued September 3 at 2:45AM EDT until September 3 at 3:30AM EDT by NWS Detroit/Pontiac MI |
| Expires | 2026-09-03T03:30:00-04:00 |
| SenderName | NWS Detroit/Pontiac MI |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 51 |
| Iem Unit | mph |
| Iem City | Detroit City Airport |
| Iem County | Wayne |
| Iem State | MI |
| Iem Wfo | DTX |
| MergedSources | [{"id":"iem_G_42.410_-83.010_1788405420000","source":"iem","severity":"low","severityValue":25,"timestamp":1788405420000,"latitude":42.41,"longitude":-83.01}] |
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 Grosse Pointe Woods?
Calamity.live data shows a weather event with CalamityScore 46/100, near Grosse Pointe Woods (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.