Right now
The most recent data we hold from NOAA arrived 19 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 01:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 92 detections recorded within 20 km of this point since 27 March 2026. The last comparable one was on 10 June 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 11 at 9:07PM EDT until June 11 at 9:45PM EDT by NWS Grand Rapids MI
An estimated 554,930 people live within 50 km of this point.
Nearby, since 27 March 2026
- June 18, 2026 · score 43 · 3.7 km
- August 5, 2026 · score 48 · 6.4 km
- June 10, 2026 · score 37 · 7.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 72 out of 100, at 80 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 | Critical |
| Calamity Score (ours) | 72 / 100 |
| Our confidence | 80% |
| Coordinates | 41.7221, -86.9775 |
| Nearest City | Michigan City (7 km) |
| Population Exposed | 554.9K within 50 km |
| Impact Tier | catastrophic |
| Timestamp | 2026-06-12T01:07:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.5ba710b33c9a74192245e6b33382c083 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kent, MI; Ottawa, MI; La Porte, IN; Berrien, MI and 5 more areas |
| Headline | Tornado Warning issued June 11 at 9:07PM EDT until June 11 at 9:45PM EDT by NWS Grand Rapids MI |
| Expires | 2026-06-11T21:45:00-04:00 |
| SenderName | NWS Grand Rapids MI |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5ba710b33c9a74192245e6b33382c083876660e7.001.1","noaa_urn:oid:2.49.0.1.840.0.35002da8f5ff66c9aa6b0728e5724df7a7779c59.001.1","noaa_urn:oid:2.49.0.1.840.0.61869f7b1fc6e387f7ae95a706fa746ff76c1915.001.1","noaa_urn:oid:2.49.0.1.840.0.6b8bb058f082ae8d42ec1e0502256f608e2bbe7d.002.1","noaa_urn:oid:2.49.0.1.840.0.35b685bbd50c2e4cb8fbdc516744e522de0576e1.001.1","noaa_urn:oid:2.49.0.1.840.0.f6a8265b0f52d5336b7b4357a37999d361bbcad1.002.1","noaa_urn:oid:2.49.0.1.840.0.d1515a122954100d8e5aaef87127660f0029319e.001.1","noaa_urn:oid:2.49.0.1.840.0.48204f0591c63d597c0a95aac5dc7097ccb707d5.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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.
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