Right now
The most recent data we hold from NOAA arrived 4 hours 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 02:15 UTC. It is kept here as a record.
No stronger detection stands among the 49 recorded within 20 km of this point since 31 March 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued June 11 at 9:44PM EDT until June 11 at 10:15PM EDT by NWS Grand Rapids MI
Urban PEI: 287,489 within a heuristic 50 km radius; not unique people.
Nearby, since 31 March 2026
- May 18, 2026 · score 43 · 9.5 km
- May 18, 2026 · score 43 · 12.5 km
- July 27, 2026 · score 67 · 12.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 67 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 | Critical |
| Calamity Score (ours) | 67 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 41.3836, -86.3376 |
| Nearest City | South Bend (34 km) |
| Urban exposure index (PEI) | 287.5K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-06-12T01:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.2c527fdab46a25ebadcdf174f73384a2 |
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: 2026-06-12T01:44:00.000Z.
First archived: 2026-06-12T01:46:56.307Z. 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 | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Barry, MI; Ionia, MI; La Porte, IN; Starke, IN; La Porte, IN; St. Joseph, IN; Berrien, MI and 2 more areas |
| Headline | Tornado Warning issued June 11 at 9:44PM EDT until June 11 at 10:15PM EDT by NWS Grand Rapids MI |
| Expires | 2026-06-11T22:15:00-04:00 |
| SenderName | NWS Grand Rapids MI |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2c527fdab46a25ebadcdf174f73384a2e36f8b94.002.1","noaa_urn:oid:2.49.0.1.840.0.5fcf7b59df6624c39bb9d3325fc0bd51e99b1836.001.1","noaa_urn:oid:2.49.0.1.840.0.8a985ff0715400d34ad39768279e1e42105fc783.001.1","noaa_urn:oid:2.49.0.1.840.0.d28dfd09adadfaa37acf63863916d9866f811bbb.001.1","noaa_urn:oid:2.49.0.1.840.0.27f29eb35a67bbe5f16c97785617cb80f9d7e380.001.1"] |
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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