This alert expired on 15 July 2026 at 23:45 UTC. It is kept here as a record.
It is the 3rd strongest of the 32 detections recorded within 20 km of this point since 4 April 2026. The last comparable one was on 4 July 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 15 at 6:52PM EDT until July 15 at 7:45PM EDT by NWS Detroit/Pontiac MI
An estimated 667,728 people live within 50 km of this point.
Nearby, since 4 April 2026
- May 18, 2026 · score 43 · 13.1 km
- June 11, 2026 · score 46 · 20.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 42.8067, -83.6667 |
| Nearest City | Burton (22 km) |
| Population Exposed | 667.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-15T22:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.90ab7e931e62aad2cc65936af867199a1630eb4a.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Genesee, MI; Oakland, MI |
| Headline | Severe Thunderstorm Warning issued July 15 at 6:52PM EDT until July 15 at 7:45PM EDT by NWS Detroit/Pontiac MI |
| Expires | 2026-07-15T19:45:00-04:00 |
| 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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 48/100, near Burton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.