This alert expired on 18 May 2026 at 18:15 UTC. It is kept here as a record.
It is the 11th strongest of the 76 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 2:04PM EDT until May 18 at 2:15PM EDT by NWS Indianapolis IN
An estimated 81,244 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 11, 2026 · score 22 · 10.5 km
- May 18, 2026 · score 34 · 15.5 km
- May 18, 2026 · score 43 · 18.4 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 84 % 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 | Medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 84% |
| Coordinates | 41.2177, -86.0558 |
| Nearest City | Goshen (44 km) |
| Population Exposed | 81.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T18:04:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.9b6a5bd004fd5f37867bbc482962dce4 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Owen, IN; Putnam, IN; Fulton, IN; Marshall, IN; Miami, IN; Boone, IN; Hamilton, IN; Hendricks, IN; Johnson, IN; Marion, IN; Morgan, IN; Owen, IN; Putnam, IN and 5 more areas |
| Headline | Severe Thunderstorm Warning issued May 18 at 2:04PM EDT until May 18 at 2:15PM EDT by NWS Indianapolis IN |
| Expires | 2026-05-18T14:15:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9b6a5bd004fd5f37867bbc482962dce45af886aa.001.1","noaa_urn:oid:2.49.0.1.840.0.ab5dbfaf80fa9c55c99af84025ff8f76ddf22084.002.1","noaa_urn:oid:2.49.0.1.840.0.80a512db243834b30eff3fa51b0958a86159a500.001.1","noaa_urn:oid:2.49.0.1.840.0.f91a4ccb42b1d8625f696e91fe1978ee07de7b32.001.1","noaa_urn:oid:2.49.0.1.840.0.1752dbeb49fa7b92c4c810c9b34dc91354d397a8.001.1","noaa_urn:oid:2.49.0.1.840.0.31d4e6b7494c67810af499bcf7e337b762a416f9.002.1","noaa_urn:oid:2.49.0.1.840.0.9272f58bb21d2a0e23aceb3992ea78bc47a83cfa.001.1","noaa_urn:oid:2.49.0.1.840.0.1623e439651efb9082215ffc813857e2fc561b43.001.1"] |
| 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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Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.