Right now
The most recent data we hold from NOAA arrived 22 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 18 September 2026 at 02:15 UTC. It is kept here as a record.
It is the 24th strongest of the 50 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 6 September 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued September 16 at 9:01PM CDT until September 19 at 9:26PM CDT by NWS Kansas City/Pleasant Hill MO
Nearby, since 15 March 2026
- September 3, 2026 · score 16 · 6.3 km
- June 8, 2026 · score 22 · 19.2 km
- June 13, 2026 · score 37 · 19.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Legacy data-support index | 0.62/1 |
| Coordinates | 39.6250, -94.0317 |
| Nearest City | Liberty (53 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-17T15:37:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a44faab7c22896311769de59517f74323362ed75.002.1 |
Physical priority index · v5. 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: 2026-09-17T15:37:00.000Z.
First archived: 2026-09-17T14:40:59.137Z. 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 | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Carroll, MO; Chariton, MO; Linn, MO; Livingston, MO; Buchanan, MO |
| Headline | Flood Warning issued September 16 at 9:01PM CDT until September 19 at 9:26PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-09-17T21:15:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a44faab7c22896311769de59517f74323362ed75.002.1","noaa_urn:oid:2.49.0.1.840.0.eb642caba07d232e003e661aaf2a2bbbf231db24.003.1"] |
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.
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