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 20 May 2026 at 14:30 UTC. It is kept here as a record.
No stronger detection stands among the 110 recorded within 20 km of this point since 4 April 2026 — 75 others scored the same. Another comparable one was recorded here earlier the same day. 37 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 19 at 8:40PM CDT until May 20 at 9:30AM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 129,330 within a heuristic 50 km radius; not unique people.
Nearby, since 4 April 2026
- May 21, 2026 · score 43 · 11.7 km
- June 23, 2026 · score 43 · 15.0 km
- June 17, 2026 · score 43 · 15.6 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.
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) | 43 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 39.0156, -91.9502 |
| Nearest City | Columbia (34 km) |
| Urban exposure index (PEI) | 129.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-21T13:30:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.bdaeb3b6a6438aa21d511c4891e0a6bc |
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: 2026-05-21T13:30:00.000Z.
First archived: 2026-05-20T01:48:35.164Z. 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 | Expected |
| Certainty | Likely |
| AreaDesc | Andrew, MO; Atchison, MO; Gentry, MO; Harrison, MO; Holt, MO; Nodaway, MO; Worth, MO; Doniphan, KS; Andrew, MO; Buchanan, MO; Atchison, KS; Leavenworth, KS and 45 more areas |
| Headline | Flood Warning issued May 19 at 8:40PM CDT until May 20 at 9:30AM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-20T09:30:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 53 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bdaeb3b6a6438aa21d511c4891e0a6bc8b4cbc9c.001.1","noaa_urn:oid:2.49.0.1.840.0.60727e5f5b5697905cc10f5e7d878aff5ada50e6.001.1","noaa_urn:oid:2.49.0.1.840.0.94cd6c8419460ca22555008358ead7d20406640b.001.1","noaa_urn:oid:2.49.0.1.840.0.4963352f282817c469d6b16ae3852dd9392ea99b.001.1","noaa_urn:oid:2.49.0.1.840.0.fb7b5a4cd5324bac7bff7f50578ed9ae25306b0e.001.1","noaa_urn:oid:2.49.0.1.840.0.16e7a4dc1c86cc0e13be1bd7c39d9b1ea06cb2c3.001.1","noaa_urn:oid:2.49.0.1.840.0.cffe8512a6b4fe89fd4400fcba572b22e4af414e.003.1","noaa_urn:oid:2.49.0.1.840.0.cffe8512a6b4fe89fd4400fcba572b22e4af414e.001.1","noaa_urn:oid:2.49.0.1.840.0.cffe8512a6b4fe89fd4400fcba572b22e4af414e.002.1","noaa_urn:oid:2.49.0.1.840.0.4244d35f2ee79bfd8cdb9e4c52467c348874f4b0.002.1","noaa_urn:oid:2.49.0.1.840.0.4244d35f2ee79bfd8cdb9e4c52467c348874f4b0.001.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.004.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.003.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.002.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.001.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.005.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.004.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.002.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.001.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.005.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.003.1","noaa_urn:oid:2.49.0.1.840.0.4446bef8096e00abfdfcc39856b884f99e451eb1.002.1","noaa_urn:oid:2.49.0.1.840.0.4446bef8096e00abfdfcc39856b884f99e451eb1.001.1","noaa_urn:oid:2.49.0.1.840.0.9997b9b842360c611271ab2bd2f9816fb537a682.001.1","noaa_urn:oid:2.49.0.1.840.0.c8d01f86f33d3a397e9f665940daccb654ea84a9.001.1","noaa_urn:oid:2.49.0.1.840.0.1e8f6612b4fa028710be6a93040230500b8e09e1.001.1","noaa_urn:oid:2.49.0.1.840.0.1e8f6612b4fa028710be6a93040230500b8e09e1.002.1","noaa_urn:oid:2.49.0.1.840.0.4767f50fd2f30cad2ce674687301162616e92aee.001.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.004.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.003.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.002.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.005.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.001.1","noaa_urn:oid:2.49.0.1.840.0.046ea7178bbedd33a55127affe6741323094c98d.001.1","noaa_urn:oid:2.49.0.1.840.0.8a06dbc76721d0ba7c73f55558c1e13f6c0de98a.001.1","noaa_urn:oid:2.49.0.1.840.0.c51c262fbdc1d9d73edb43c1835201f2ff941a17.001.1","noaa_urn:oid:2.49.0.1.840.0.d2ef0a1dca8565749aed099bf4abba37569a60fb.001.1","noaa_urn:oid:2.49.0.1.840.0.c880594d1f209d36328af3789c302b7447eac75a.001.1","noaa_urn:oid:2.49.0.1.840.0.1fce0e8f4a132ef350ba3d17379509e2520c33d5.001.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.008.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.005.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.004.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.003.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.002.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.001.1","noaa_urn:oid:2.49.0.1.840.0.df5577934b6af875b62cab12f80bdbd368fcfc3e.001.1","noaa_urn:oid:2.49.0.1.840.0.0ced14dac0a19cb10c7306bd20181fe83e0e927e.001.1","noaa_urn:oid:2.49.0.1.840.0.c3109cc4d2070864b51b0e5a0042ed4c0e1276d2.001.1","noaa_urn:oid:2.49.0.1.840.0.db3a7a74f0d06dc0414a5ec07a8fdc22c08a5381.001.1","noaa_urn:oid:2.49.0.1.840.0.23eddcc18080d9ec6febbb5689caf303f5a8d7c9.001.1","noaa_urn:oid:2.49.0.1.840.0.30434c6eb813aad4fc92d6394c4eb77cc3b776be.001.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.007.1","noaa_urn:oid:2.49.0.1.840.0.d13f28163487689eb1e347bd05a70e044bb9cfaa.006.1"] |
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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