Right now
The most recent data we hold from NOAA arrived 38 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 11 June 2026 at 01:30 UTC. It is kept here as a record.
It is the 24th strongest of the 86 detections recorded within 20 km of this point since 31 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 10 at 9:07PM EDT until June 10 at 9:30PM EDT by NWS Gaylord MI
Urban PEI: 2,596,529 within a heuristic 50 km radius; not unique people.
Nearby, since 31 March 2026
- May 9, 2026 · score 52 · 5.1 km
- September 3, 2026 · score 46 · 5.5 km
- June 16, 2026 · score 52 · 5.8 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.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.79/1 |
| Coordinates | 42.7503, -83.2482 |
| Nearest City | Auburn Hills (7 km) |
| Urban exposure index (PEI) | 2.6M within 50 km |
| Impact Tier | significant |
| Date | 2026-06-11 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.eae010ffd1f2e354f0cd68f4803085f6 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-11 — time not reported.
First archived: 2026-06-11T01:07:47.498Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Montmorency, MI; Tuscola, MI; Lenawee, MI; Washtenaw, MI and 8 more areas |
| Headline | Severe Thunderstorm Warning issued June 10 at 9:07PM EDT until June 10 at 9:30PM EDT by NWS Gaylord MI |
| Expires | 2026-06-10T21:30:00-04:00 |
| SenderName | NWS Gaylord MI |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.eae010ffd1f2e354f0cd68f4803085f696d289b1.002.1","noaa_urn:oid:2.49.0.1.840.0.767b6e1115c20a98d81f4a1cc073c0c68f7e53ca.001.1","noaa_urn:oid:2.49.0.1.840.0.94424fdaf46a55a501bc0f74bae071f8f1231710.001.1","noaa_urn:oid:2.49.0.1.840.0.688b94338fd119f6978cc24836488a8f5e3c4c63.001.1","noaa_urn:oid:2.49.0.1.840.0.7a1fbe3fb920ff2a1210f0c276304c10b6063e13.001.1","noaa_urn:oid:2.49.0.1.840.0.34f92ee66389a670e2117d57dc32c79abe589a53.001.1","noaa_urn:oid:2.49.0.1.840.0.412ed30988f5d5b46e59c23cd16de8b8193663f6.001.1","noaa_urn:oid:2.49.0.1.840.0.7498befe5ef5e9d02f0154843846e11bef4e91b6.001.1","noaa_urn:oid:2.49.0.1.840.0.739087df78aa4d66702f9a9df99c26aba2cfb2b3.001.1","noaa_urn:oid:2.49.0.1.840.0.2bc7dd7bd7162624c6337a47b534f05c7335d204.001.1","noaa_urn:oid:2.49.0.1.840.0.c75739880db3207978aca566fe26e216b2ea5752.001.1"] |
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 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.
Review the area, threshold and delivery channel in your account.
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