Right now
The most recent data we hold from NOAA arrived 17 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 10:30 UTC. It is kept here as a record.
No stronger detection stands among the 128 recorded within 20 km of this point since 15 March 2026 — 85 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 20 at 5:19AM CDT until May 22 at 3:34AM CDT by NWS Springfield MO
An estimated 171,925 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 21, 2026 · score 43 · 8.3 km
- July 10, 2026 · score 43 · 13.4 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 81 % 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 | 81% |
| Coordinates | 38.9957, -92.1679 |
| Nearest City | Columbia (15 km) |
| Population Exposed | 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:2.49.0.1.840.0.1fabfa7d4530ee502de967000ad00ca2 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Vernon, MO; St. Clair, MO; Vernon, MO; Cooper, MO and 33 more areas |
| Headline | Flood Warning issued May 20 at 5:19AM CDT until May 22 at 3:34AM CDT by NWS Springfield MO |
| Expires | 2026-05-21T05:30:00-05:00 |
| SenderName | NWS Springfield MO |
| HasExactCoords | true |
| MergedCount | 40 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1fabfa7d4530ee502de967000ad00ca214e3c7ed.001.1","noaa_urn:oid:2.49.0.1.840.0.1fabfa7d4530ee502de967000ad00ca214e3c7ed.002.1","noaa_urn:oid:2.49.0.1.840.0.63f4a2632e2f27539de69e181c7d74e0948d4f47.001.1","noaa_urn:oid:2.49.0.1.840.0.980ebf17e1e54b908c946cdaec3f1bcaa87b6862.001.1","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:2.49.0.1.840.0.4963352f282817c469d6b16ae3852dd9392ea99b.001.1","noaa_urn:oid:2.49.0.1.840.0.16e7a4dc1c86cc0e13be1bd7c39d9b1ea06cb2c3.001.1","noaa_urn:oid:2.49.0.1.840.0.cffe8512a6b4fe89fd4400fcba572b22e4af414e.001.1","noaa_urn:oid:2.49.0.1.840.0.cffe8512a6b4fe89fd4400fcba572b22e4af414e.003.1","noaa_urn:oid:2.49.0.1.840.0.4244d35f2ee79bfd8cdb9e4c52467c348874f4b0.002.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.003.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.001.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.004.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.002.1","noaa_urn:oid:2.49.0.1.840.0.220fdc21c7871a3a5ee00cc1f2275e85b01d82f7.005.1","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:2.49.0.1.840.0.9e8b7f65e3c4b81c5c2ad6b3523ab4e55e85a662.001.1","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:2.49.0.1.840.0.1e8f6612b4fa028710be6a93040230500b8e09e1.002.1","noaa_urn:oid:2.49.0.1.840.0.4767f50fd2f30cad2ce674687301162616e92aee.001.1","noaa_urn:oid:2.49.0.1.840.0.c880594d1f209d36328af3789c302b7447eac75a.001.1","noaa_urn:oid:2.49.0.1.840.0.d3d47b36bb95221c74eec31fa0a6986df630a4ce.001.1","noaa_urn:oid:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.005.1","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:2.49.0.1.840.0.8a698cfca50628911105d350e8343000c5ae5c21.004.1","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.f5a4859b840d0e1c97871987ce5e081d42b755ab.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.
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.