This alert expired on 16 July 2026 at 01:15 UTC. It is kept here as a record.
It is the 3rd strongest of the 50 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 15 at 8:16PM EDT until July 15 at 9:15PM EDT by NWS Grand Rapids MI
An estimated 249,602 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 3, 2026 · score 67 · 10.0 km
- July 15, 2026 · score 43 · 14.9 km
- June 10, 2026 · score 37 · 15.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 42.6714, -84.1871 |
| Nearest City | Haslett (19 km) |
| Population Exposed | 249.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-16T00:16:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.ccfb2a8c70b8630745d403a17f37427aa6ef7543.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ingham, MI |
| Headline | Severe Thunderstorm Warning issued July 15 at 8:16PM EDT until July 15 at 9:15PM EDT by NWS Grand Rapids MI |
| Expires | 2026-07-15T21:15:00-04:00 |
| SenderName | NWS Grand Rapids 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 43/100, near Haslett (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.