This alert expired on 3 September 2026 at 19:15 UTC. It is kept here as a record.
It is the 10th strongest of the 28 detections recorded within 20 km of this point since 4 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 2:47PM EDT until September 3 at 3:15PM EDT by NWS Detroit/Pontiac MI
An estimated 328,802 people live within 50 km of this point.
Nearby, since 4 April 2026
- May 18, 2026 · score 43 · 18.2 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 37 out of 100, at 91 % 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) | 37 / 100 |
| Our confidence | 91% |
| Coordinates | 42.9043, -84.0036 |
| Nearest City | Flint (28 km) |
| Population Exposed | 328.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T18:47:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.34be17399ec8fb6062ed4d8470cd63b984969d5b.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lapeer, MI; Clinton, MI; Eaton, MI; Ingham, MI; Jackson, MI and 5 more areas |
| Headline | Severe Thunderstorm Warning issued September 3 at 2:47PM EDT until September 3 at 3:15PM EDT by NWS Detroit/Pontiac MI |
| Expires | 2026-09-03T15:15:00-04:00 |
| SenderName | NWS Detroit/Pontiac MI |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.34be17399ec8fb6062ed4d8470cd63b984969d5b.001.1","noaa_urn:oid:2.49.0.1.840.0.3056d3de73031968791208286d0f7d88cdf30c63.001.1","noaa_urn:oid:2.49.0.1.840.0.4c661e6d32c456f8cd73cc9339387d954ac2479a.002.1","noaa_urn:oid:2.49.0.1.840.0.ea4b33291a6f8c7f9423d92ba7bc9e7cbe2056d6.001.1","noaa_urn:oid:2.49.0.1.840.0.9af78453c4cd43d9a7a8525f5d7325ecebc501cc.001.1","noaa_urn:oid:2.49.0.1.840.0.2c7d13134ea405b25adc937a4e63500521c4042b.001.1","noaa_urn:oid:2.49.0.1.840.0.5cf20d31e53ee840aa9790959b84bdb7c5917a37.001.1","noaa_urn:oid:2.49.0.1.840.0.4c32348012dd322b024002060f77818c2a73e95a.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 2 E Highland |
| Spc County | Oakland |
| Spc State | MI |
| Spc Comments | Multiple trees down on Duck Lake Rd. (DTX) |
| Iem TypeSummary | D |
| Iem City | 4 S Holly |
| Iem County | Oakland |
| Iem State | MI |
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 Flint?
Calamity.live data shows a weather event with CalamityScore 37/100, near Flint (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.