Right now
The most recent data we hold from NOAA arrived 3 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 12 June 2026 at 04:00 UTC. It is kept here as a record.
It is the 25th strongest of the 59 detections recorded within 20 km of this point since 26 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 11 at 10:46PM EDT until June 12 at 12:00AM EDT by NWS Detroit/Pontiac MI
Urban PEI: 75,788 within a heuristic 50 km radius; not unique people.
Nearby, since 26 March 2026
- August 11, 2026 · score 43 · 13.4 km
- June 12, 2026 · score 37 · 13.6 km
- June 18, 2026 · score 43 · 18.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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) | 32 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.7937, -86.2584 |
| Nearest City | Logansport (10 km) |
| Urban exposure index (PEI) | 75.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T02:46:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.92ab21913a5e8bc30f7cd49fa8a66c82 |
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: 2026-06-12T02:46:00.000Z.
First archived: 2026-06-12T02:48:20.172Z. 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 | Genesee, MI; Clinton, MI; Ingham, MI; Livingston, MI; Shiawassee, MI and 9 more areas |
| Headline | Severe Thunderstorm Warning issued June 11 at 10:46PM EDT until June 12 at 12:00AM EDT by NWS Detroit/Pontiac MI |
| Expires | 2026-06-12T00:00:00-04:00 |
| SenderName | NWS Detroit/Pontiac MI |
| HasExactCoords | true |
| MergedCount | 12 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.92ab21913a5e8bc30f7cd49fa8a66c8281a61751.001.1","noaa_urn:oid:2.49.0.1.840.0.c94d08b4414b16a207c705211fa9c937c63a39fd.001.1","noaa_urn:oid:2.49.0.1.840.0.b11e34df72b7740308c1a218330b7206bcd14e5a.001.1","noaa_urn:oid:2.49.0.1.840.0.8a39968857f36406efc0d22bdfb475840529eea2.001.1","noaa_urn:oid:2.49.0.1.840.0.a62567709677e31a76732e4dfab5a673acee7554.001.1","noaa_urn:oid:2.49.0.1.840.0.e1fa828d0cff0660ec3c9581a66651d4ee445014.001.1","noaa_urn:oid:2.49.0.1.840.0.362d039ef59d1b273b5c769f6b0a0862c198954a.002.1","noaa_urn:oid:2.49.0.1.840.0.ba6ebcbfb7f299ab8ef84bd2e63c98bc3eb05aa9.001.1","noaa_urn:oid:2.49.0.1.840.0.bf2662168b333f3fc600568ff58d8bd288d786c4.001.1","noaa_urn:oid:2.49.0.1.840.0.d1352e9a72df969854738e2759269d58ec0f50a4.002.1","noaa_urn:oid:2.49.0.1.840.0.1fbf3a4fba0577e8e3ef683c18cfc115aab1123d.001.1","noaa_urn:oid:2.49.0.1.840.0.165041a2d0290cf1773bbaf80b79e043cf6ebf40.001.1"] |
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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