Right now
The most recent data we hold from NOAA arrived 2 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 21 May 2026 at 03:00 UTC. It is kept here as a record.
No stronger detection stands among the 142 recorded within 20 km of this point since 15 March 2026 — 83 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 9:56PM CDT until May 22 at 7:46PM CDT by NWS Kansas City/Pleasant Hill MO
Urban PEI: 171,925 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- May 21, 2026 · score 43 · 11.4 km
- July 10, 2026 · score 43 · 15.9 km
- May 20, 2026 · score 43 · 17.2 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 | 0.80/1 |
| Coordinates | 38.9974, -92.2080 |
| Nearest City | Columbia (12 km) |
| Urban exposure index (PEI) | 171.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-21T09:45:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.a1388836345e9ac641bad610128e643e |
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: 2026-05-21T09:45:00.000Z.
First archived: 2026-05-20T03:15:42.643Z. 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 | Cooper, MO; Saline, MO; Platte, MO; Callaway, MO; Osage, MO and 42 more areas |
| Headline | Flood Warning issued May 19 at 9:56PM CDT until May 22 at 7:46PM CDT by NWS Kansas City/Pleasant Hill MO |
| Expires | 2026-05-20T22:00:00-05:00 |
| SenderName | NWS Kansas City/Pleasant Hill MO |
| HasExactCoords | true |
| MergedCount | 50 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a1388836345e9ac641bad610128e643e47e08f7f.001.1","noaa_urn:oid:2.49.0.1.840.0.62b41b99b96d274a1a6ae44a245859b9f58b3def.001.1","noaa_urn:oid:2.49.0.1.840.0.cd41177fee452f24ae22874be177d585196c718d.001.1","noaa_urn:oid:2.49.0.1.840.0.5449b166a5ee1ec778baeafd70343a9ed8951778.001.1","noaa_urn:oid:2.49.0.1.840.0.f51a81957426bf7f674459a51c42cdad4c0d10e8.001.1","noaa_urn:oid:2.49.0.1.840.0.42116fd0dfcdb83552d5298781356bf322ee1738.001.1","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:2.49.0.1.840.0.4244d35f2ee79bfd8cdb9e4c52467c348874f4b0.002.1","noaa_urn:oid:2.49.0.1.840.0.4244d35f2ee79bfd8cdb9e4c52467c348874f4b0.001.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.003.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.005.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.002.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.004.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.001.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.001.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.003.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.005.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.002.1","noaa_urn:oid:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.004.1","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:2.49.0.1.840.0.1e8f6612b4fa028710be6a93040230500b8e09e1.002.1","noaa_urn:oid:2.49.0.1.840.0.4767f50fd2f30cad2ce674687301162616e92aee.001.1","noaa_urn:oid:2.49.0.1.840.0.db3a7a74f0d06dc0414a5ec07a8fdc22c08a5381.001.1","noaa_urn:oid:2.49.0.1.840.0.30434c6eb813aad4fc92d6394c4eb77cc3b776be.001.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.001.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.003.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.005.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.002.1","noaa_urn:oid:2.49.0.1.840.0.622054a3abad4e46a32582d2258f8a27d5dc25b6.004.1","noaa_urn:oid:2.49.0.1.840.0.c880594d1f209d36328af3789c302b7447eac75a.001.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.005.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.006.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.004.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.001.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.002.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.008.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.003.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.007.1","noaa_urn:oid:2.49.0.1.840.0.f5a4859b840d0e1c97871987ce5e081d42b755ab.001.1","noaa_urn:oid:2.49.0.1.840.0.0883c4bd7b3e8467c0842391b296d3a61f395e69.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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