This alert expired on 11 June 2026 at 02:00 UTC. It is kept here as a record.
It is the 22nd strongest of the 35 detections recorded within 20 km of this point since 13 March 2026. The last comparable one was on 19 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 8:42PM EDT until June 10 at 10:00PM EDT by NWS Detroit/Pontiac MI
An estimated 3,242,885 people live within 50 km of this point.
Nearby, since 13 March 2026
- July 3, 2026 · score 52 · 2.5 km
- April 4, 2026 · score 52 · 7.7 km
- March 13, 2026 · score 52 · 11.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 80 % 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 | 80% |
| Coordinates | 42.4485, -83.3871 |
| Nearest City | Farmington Hills (5 km) |
| Population Exposed | 3.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T00:42:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.76a078adf285af1979507e09f646df8e |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lenawee, MI; Washtenaw, MI; Bay, MI; Midland, MI; Saginaw, MI and 4 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 8:42PM EDT until June 10 at 10:00PM EDT by NWS Detroit/Pontiac MI |
| Expires | 2026-06-10T22:00:00-04:00 |
| SenderName | NWS Detroit/Pontiac MI |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.76a078adf285af1979507e09f646df8e1764ca51.001.1","noaa_urn:oid:2.49.0.1.840.0.a4a948621966793550f68cf41ea2966410b5c336.001.1","noaa_urn:oid:2.49.0.1.840.0.924bcb17b2428a2e3186ba73e8922cfb4d608a2d.001.1","noaa_urn:oid:2.49.0.1.840.0.8872da4352aab6ff9cd18b6c86093b3c6d87abb9.001.1","noaa_urn:oid:2.49.0.1.840.0.9e9c273cf2ee9ad94c5a866cefd9e1761bc6b75b.002.1","noaa_urn:oid:2.49.0.1.840.0.1464ae561409e2ad2330383e12058d038f5c5f2d.001.1","noaa_urn:oid:2.49.0.1.840.0.739087df78aa4d66702f9a9df99c26aba2cfb2b3.001.1"] |
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 46/100, near Farmington Hills (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.