This alert expired on 19 May 2026 at 22:00 UTC. It is kept here as a record.
No stronger detection stands among the 135 recorded within 20 km of this point since 12 March 2026 — 84 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 19 at 5:25PM EDT until May 19 at 6:00PM EDT by NWS Indianapolis IN
An estimated 1,423,769 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 12, 2026 · score 52 · 0.6 km
- May 19, 2026 · score 52 · 1.7 km
- March 12, 2026 · score 52 · 5.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 85% |
| Coordinates | 39.9600, -85.7114 |
| Nearest City | Anderson (17 km) |
| Population Exposed | 1.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-19T21:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.cf497b4fcacdf26861756fe37a2db02b07b8479a.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Delaware, IN; Hamilton, IN; Hancock, IN; Henry, IN; Madison, IN; Marion, IN |
| Headline | Severe Thunderstorm Warning issued May 19 at 5:25PM EDT until May 19 at 6:00PM EDT by NWS Indianapolis IN |
| Expires | 2026-05-19T18:00:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 56 |
| Iem Unit | MPH |
| Iem City | 3 NNE Michaelsville |
| Iem County | Grant |
| Iem State | IN |
| Iem Wfo | IWX |
| MergedSources | [{"id":"iem_G_40.490_-85.680_1779222900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779222900000,"latitude":40.49,"longitude":-85.68}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 52/100, near Anderson (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.