Right now
The most recent data we hold from NOAA arrived 3 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 20 May 2026 at 18:45 UTC. It is kept here as a record.
No stronger detection stands among the 105 recorded within 20 km of this point since 16 March 2026 — 79 others scored the same. Another comparable one was recorded here earlier the same day. 56 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 19 at 1:45PM CDT until May 21 at 3:17PM CDT by NWS Kansas City/Pleasant Hill MO
An estimated 129,330 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 10, 2026 · score 43 · 14.6 km
- May 20, 2026 · score 43 · 18.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 80 % 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 39.0327, -92.0839 |
| Nearest City | Columbia (23 km) |
| Population Exposed | 129.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-21T14:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.01bc975d297ae787385f3e5156a6c769 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Andrew, MO; Buchanan, MO; Bates, MO; Cass, MO; Henry, MO; Cass, MO; Henry, MO; Johnson, MO and 45 more areas |
| Headline | Flood Warning issued May 19 at 1:45PM CDT until May 21 at 3:17PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-20T13:45:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 53 |
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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 near Columbia?
Calamity.live data shows a weather event with CalamityScore 43/100, near Columbia (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.