Right now
The most recent data we hold from NOAA arrived 9 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 18 May 2026 at 19:15 UTC. It is kept here as a record.
It is the 24th strongest of the 87 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 2:09PM EDT until May 18 at 3:15PM EDT by NWS Northern Indiana
Urban PEI: 32,983 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 11, 2026 · score 22 · 16.1 km
- March 16, 2026 · score 63 · 18.2 km
- May 18, 2026 · score 34 · 20.6 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.84/1 |
| Coordinates | 41.2205, -85.9891 |
| Nearest City | Goshen (42 km) |
| Urban exposure index (PEI) | 33.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T18:09:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.bc66963d184deebc3c9c66ba0cddfb4a |
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: 2026-05-18T18:09:00.000Z.
First archived: 2026-05-18T18:13:01.497Z. 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 | Noble, IN; Whitley, IN; Boone, IN; Hamilton, IN; Hendricks, IN; Johnson, IN; Marion, IN; Morgan, IN; Putnam, IN; Allegan, MI; Barry, MI; Calhoun, MI; Kalamazoo, MI; Kent, MI; Ottawa, MI and 6 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 2:09PM EDT until May 18 at 3:15PM EDT by NWS Northern Indiana |
| Expires | 2026-05-18T15:15:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bc66963d184deebc3c9c66ba0cddfb4a61a905b3.001.1","noaa_urn:oid:2.49.0.1.840.0.e023d22bb5f7e38f34270de970203a97c178ba78.002.1","noaa_urn:oid:2.49.0.1.840.0.f1baaf5db28a831c3c55b5ee7e54b6aee988b402.001.1","noaa_urn:oid:2.49.0.1.840.0.8ab58bc5273fc20f476199b5cf18becbfd908544.001.1","noaa_urn:oid:2.49.0.1.840.0.5a2eae5c0bb20d8c50961003ccaed4fec8c4bd0e.001.1","noaa_urn:oid:2.49.0.1.840.0.9b6a5bd004fd5f37867bbc482962dce45af886aa.001.1","noaa_urn:oid:2.49.0.1.840.0.31d4e6b7494c67810af499bcf7e337b762a416f9.002.1","noaa_urn:oid:2.49.0.1.840.0.1623e439651efb9082215ffc813857e2fc561b43.001.1","noaa_urn:oid:2.49.0.1.840.0.f91a4ccb42b1d8625f696e91fe1978ee07de7b32.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 N South Bend |
| Iem County | St. Joseph |
| Iem State | IN |
| Iem Wfo | IWX |
| Iem Remark | Media report of a large tree downed onto a vehicle by a thunderstorm wind gust near intersection of Humboldt Street and Cleveland Avenue in South Bend, in St. Joseph County Indiana. |
| MergedSources | [{"id":"iem_D_41.690_-86.270_1779125460000","source":"iem","severity":"low","severityValue":25,"timestamp":1779125460000,"latitude":41.69,"longitude":-86.27}] |
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.
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