This alert is in force until 2 September 2026, 14:15 UTC.
It is the 8th strongest of the 24 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 6 July 2026.
What the source measured
HEAT GOV reported: * WHAT...Heat index values up to 102 expected. * WHERE...Lenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw, and Wayne Counties. * WHEN...From noon today to 8 PM EDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
An estimated 2,665,577 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 18, 2026 · score 52 · 14.0 km
- April 15, 2026 · score 52 · 14.6 km
- April 4, 2026 · score 52 · 17.8 km
How we know
One source: HEAT GOV. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 69 % 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) | 46 / 100 |
| Our confidence | 69% |
| Coordinates | 42.2556, -83.5061 |
| Nearest City | Canton (6 km) |
| Population Exposed | 2.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T16:00:00.000Z |
| Source | http://www.weather.gov |
Score Breakdown
Technical Details
| Event | Heat Advisory |
| Urgency | Expected |
| Certainty | Likely |
| Onset | 2026-09-02T12:00:00-04:00 |
| Expires | 2026-09-02T10:15:00-04:00 |
| AreaDesc | Livingston; Oakland; Macomb; Washtenaw; Wayne; Lenawee; Monroe |
| SenderName | NWS Detroit/Pontiac MI |
| ZonesUsedForCentroid | 7 |
| ZoneCount | 7 |
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 Canton?
Calamity.live data shows a weather event with CalamityScore 46/100, near Canton (United States), based on data from heat_gov. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.