Right now
The most recent data we hold from NOAA arrived 6 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 16 May 2026 at 22:00 UTC. It is kept here as a record.
It is the 30th strongest of the 105 detections recorded within 20 km of this point since 27 April 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 16 at 4:03PM CDT until May 16 at 5:00PM CDT by NWS St Louis MO
Nearby, since 27 April 2026
- June 16, 2026 · score 22 · 3.6 km
- July 2, 2026 · score 22 · 9.3 km
- July 1, 2026 · score 22 · 9.3 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.58/1 |
| Coordinates | 38.7005, -88.1245 |
| Nearest City | Vincennes (52 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-16T21:03:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.144df2b29a1089bbe722c7d387be7edf |
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: 2026-05-16T21:03:00.000Z.
First archived: 2026-05-16T21:10:59.774Z. 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 | Fayette, IL; Marion, IL; Daviess, IN; Martin, IN; Crawford, IL; Lawrence, IL and 2 more areas |
| Headline | Severe Thunderstorm Warning issued May 16 at 4:03PM CDT until May 16 at 5:00PM CDT by NWS St Louis MO |
| Expires | 2026-05-16T17:00:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.144df2b29a1089bbe722c7d387be7edfcc75c4bc.001.1","noaa_urn:oid:2.49.0.1.840.0.adb0e551899b5b53eb7f3172c13a7976f22da4cc.001.1","noaa_urn:oid:2.49.0.1.840.0.261494ada2d35c4abce15bf512f51e61cc8efb44.001.1","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.ccf9585f082b4a28b42dfb933746cd8e188eeef1.001.1"] |
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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