This alert expired on 15 May 2026 at 13:15 UTC. It is kept here as a record.
It is the 15th strongest of the 55 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 13 May 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 13 at 8:13PM CDT until May 19 at 5:21PM CDT by NWS St Louis MO
Nearby, since 10 March 2026
- May 13, 2026 · score 22 · 0.0 km
- July 26, 2026 · score 22 · 1.6 km
- March 10, 2026 · score 22 · 7.4 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, at 61 % 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) | 22 / 100 |
| Our confidence | 61% |
| Coordinates | 38.5246, -88.0839 |
| Nearest City | Vincennes (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-14T01:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.9e06d28244e5032cb736595128c1689e |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clinton, IL; Gibson, IN; Knox, IN; Daviess, IN; Gibson, IN; Knox, IN; Pike, IN |
| Headline | Flood Warning issued May 13 at 8:13PM CDT until May 19 at 5:21PM CDT by NWS St Louis MO |
| Expires | 2026-05-15T08:15:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9e06d28244e5032cb736595128c1689e0f2ee3f6.001.1","noaa_urn:oid:2.49.0.1.840.0.6cd6f43512356012634be0c8598343c90d509ae4.001.1","noaa_urn:oid:2.49.0.1.840.0.6cd6f43512356012634be0c8598343c90d509ae4.002.1"] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.