Right now
The most recent data we hold from NOAA arrived 1 minute 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 16 May 2026 at 21:30 UTC. It is kept here as a record.
It is the 11th strongest of the 80 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 16 at 5:00PM EDT until May 16 at 5:30PM EDT by NWS Indianapolis IN
Urban PEI: 18,012 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- May 16, 2026 · score 34 · 9.4 km
- June 16, 2026 · score 22 · 12.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 | 0.79/1 |
| Coordinates | 38.7061, -87.9745 |
| Nearest City | Vincennes (39 km) |
| Urban exposure index (PEI) | 18.0K within 50 km |
| Impact Tier | significant |
| Date | 2026-05-16 — time not reported by the source |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1be8b158ab4489ca64d7e6a3d047da3e |
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: 2026-05-16 — time not reported.
First archived: 2026-05-16T21:00:47.061Z. 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 | Daviess, IN; Martin, IN; Marion, IL; Clinton, IL and 1 more areas |
| Headline | Severe Thunderstorm Warning issued May 16 at 5:00PM EDT until May 16 at 5:30PM EDT by NWS Indianapolis IN |
| Expires | 2026-05-16T17:30:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1be8b158ab4489ca64d7e6a3d047da3e3ad73913.001.1","noaa_urn:oid:2.49.0.1.840.0.79c23e52ca07da01d06f67ba4802c4e5548f2909.001.1","noaa_urn:oid:2.49.0.1.840.0.eb488e073e910e01bfa5da43e8cbde12e25ff18a.001.1","noaa_urn:oid:2.49.0.1.840.0.ccf9585f082b4a28b42dfb933746cd8e188eeef1.001.1","noaa_urn:oid:2.49.0.1.840.0.417d7242163783667c7ea589f44dbcd96c51ddb3.001.1"] |
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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