Right now
The most recent data we hold from NOAA arrived 8 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 19 May 2026 at 13:45 UTC. It is kept here as a record.
It is the 67th strongest of the 151 detections recorded within 20 km of this point since 4 April 2026. The last comparable one was on 19 May 2026. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 18 at 8:44PM CDT until May 20 at 11:23PM CDT by NWS Kansas City/Pleasant Hill MO
Nearby, since 4 April 2026
- June 18, 2026 · score 43 · 5.0 km
- June 17, 2026 · score 43 · 5.6 km
- May 18, 2026 · score 22 · 10.9 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 | 39.1756, -91.8163 |
| Nearest City | Columbia (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-20T17:15:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.ccae25f8b24f6b93c777716e47390d8c |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Atchison, KS; Leavenworth, KS; Buchanan, MO; Platte, MO and 38 more areas |
| Headline | Flood Warning issued May 18 at 8:44PM CDT until May 20 at 11:23PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-19T08:45:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 45 |
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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.
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