Right now
The most recent data we hold from NOAA arrived 10 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 02:45 UTC. It is kept here as a record.
No stronger detection stands among the 147 recorded within 20 km of this point since 4 April 2026 — 60 others scored the same. Another comparable one was recorded here earlier the same day. 22 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 18 at 9:39PM CDT until May 22 at 2:43AM CDT by NWS Springfield MO
An estimated 129,330 people live within 50 km of this point.
Nearby, since 4 April 2026
- June 18, 2026 · score 43 · 1.4 km
- June 17, 2026 · score 43 · 1.6 km
- May 18, 2026 · score 22 · 13.6 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, 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 | 39.1211, -91.8296 |
| Nearest City | Columbia (47 km) |
| Population Exposed | 129.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-20T18:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.7a2ea8bf9a483ab0dd46ba554b8b6477 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Vernon, MO; Bourbon, KS; Cass, MO; Henry, MO; Johnson, MO and 43 more areas |
| Headline | Flood Warning issued May 18 at 9:39PM CDT until May 22 at 2:43AM CDT by NWS Springfield MO |
| Expires | 2026-05-19T21:45:00-05:00 |
| SenderName | NWS Springfield MO |
| HasExactCoords | true |
| MergedCount | 50 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7a2ea8bf9a483ab0dd46ba554b8b647761abab47.001.1","noaa_urn:oid:2.49.0.1.840.0.7a2ea8bf9a483ab0dd46ba554b8b647761abab47.002.1","noaa_urn:oid:2.49.0.1.840.0.21a4ec8e76094cc43b9b7d723b6e158db9024158.001.1","noaa_urn:oid:2.49.0.1.840.0.eec9c1facc8746f19d08a8d7d6fc94e35964797f.001.1","noaa_urn:oid:2.49.0.1.840.0.fa86cfd39069117acd7ce2fb65e8db46ed2278f0.001.1","noaa_urn:oid:2.49.0.1.840.0.a88c170f8f93fcf9107cd8060413250e7b807f48.001.1","noaa_urn:oid:2.49.0.1.840.0.726762ace29249eb98f4415fde1796f229d10757.001.1","noaa_urn:oid:2.49.0.1.840.0.914d1206abe662fe5aee1e10796b7df45065b34f.001.1","noaa_urn:oid:2.49.0.1.840.0.0629460cbe9101aa88fb0830d4808cf5f29e6448.001.1","noaa_urn:oid:2.49.0.1.840.0.83eed430e4ae81900b0c0251486e2e47b2429c7a.001.1","noaa_urn:oid:2.49.0.1.840.0.8bc8b26d89f9661ad9fb5a68673c04557794ea53.001.1","noaa_urn:oid:2.49.0.1.840.0.ec4d6bce9642a1122b5e52b87cabfd1351986657.001.1","noaa_urn:oid:2.49.0.1.840.0.19a3861551d0df7e810bb53100913955e95544d4.001.1","noaa_urn:oid:2.49.0.1.840.0.a847cee82a09e66706423e5d4b8dd9711c63997f.001.1","noaa_urn:oid:2.49.0.1.840.0.410b82c0e4e3c7ad688bc88ff015d90299f3b8cb.001.1","noaa_urn:oid:2.49.0.1.840.0.5fadd3db98807a45ec86c7c3ae2c61def6fc819e.001.1","noaa_urn:oid:2.49.0.1.840.0.ccae25f8b24f6b93c777716e47390d8ca2d7b90c.001.1","noaa_urn:oid:2.49.0.1.840.0.910a35201f479a37e7a1a6064a6e5f569167840b.001.1","noaa_urn:oid:2.49.0.1.840.0.015da3e960856ec6ce5e6db04f93800e23fb4bc2.001.1","noaa_urn:oid:2.49.0.1.840.0.9e7be42389a21006b7bb250118a8dce3ce168239.001.1","noaa_urn:oid:2.49.0.1.840.0.16060dfbb14ba95d65aebb732f43b4d1dd89536a.001.1","noaa_urn:oid:2.49.0.1.840.0.0a619cc5aa01aaa19267f564450aa8347300c8b5.001.1","noaa_urn:oid:2.49.0.1.840.0.2007dc37c469a782275c20a3b3803b412746b0e8.001.1","noaa_urn:oid:2.49.0.1.840.0.45d849e484dc544347ecc5f37a16e0f0aafa21d9.001.1","noaa_urn:oid:2.49.0.1.840.0.9dcf019906e8951a8e22eac628ebaf0024619700.001.1","noaa_urn:oid:2.49.0.1.840.0.11963bcb2dab8c9c9d8168d3ee087515fbc93a93.001.1","noaa_urn:oid:2.49.0.1.840.0.7ae5a06701979b38a9c5d8e1f6292d4ef263c634.001.1","noaa_urn:oid:2.49.0.1.840.0.a27af0ac2f75bdba7ee523d9a0f197a64ecaffcd.001.1","noaa_urn:oid:2.49.0.1.840.0.23599c7524cb3abda8b09da48cd9349d70ca6001.001.1","noaa_urn:oid:2.49.0.1.840.0.42c6d79a317ca3c638a21eaafd17a480fd175095.001.1","noaa_urn:oid:2.49.0.1.840.0.5251152d838adcbb5354e9ff50303d95ba969514.001.1","noaa_urn:oid:2.49.0.1.840.0.6c2adc2016768c8fd5c0c6cee4987c696f9f7b6c.001.1","noaa_urn:oid:2.49.0.1.840.0.5e5e1b61a9a1d4c6770a805a2a84525f195b0259.001.1","noaa_urn:oid:2.49.0.1.840.0.58d95f39117ce61d7dde3d0c7eb01543ef1b9a7f.001.1","noaa_urn:oid:2.49.0.1.840.0.74fd1b262e7028bcc3481466ef6da41013e4856d.001.1","noaa_urn:oid:2.49.0.1.840.0.397cea98dc1aaff20e034fa3ead8d1b253951cc3.001.1","noaa_urn:oid:2.49.0.1.840.0.db068dc8ce73acb19d5e18969c7bd42cb8c449de.001.1","noaa_urn:oid:2.49.0.1.840.0.5df0ea84aff9fdb627e6be962d2bdb65a8f6a89f.001.1","noaa_urn:oid:2.49.0.1.840.0.9251c599503ef5df21648c5f9402a6ce084dc64b.001.1","noaa_urn:oid:2.49.0.1.840.0.4eade080ac0596af7c9a63b4838990f63010d90a.001.1","noaa_urn:oid:2.49.0.1.840.0.6de98271655348d6cf295bcc492858089314576a.001.1","noaa_urn:oid:2.49.0.1.840.0.950b09acb3833c96f9389c0ed105b15aeb83e4d7.001.1","noaa_urn:oid:2.49.0.1.840.0.8747057c9e5cbaf6ad2186d9bbe7c84daeec03dd.005.1","noaa_urn:oid:2.49.0.1.840.0.8747057c9e5cbaf6ad2186d9bbe7c84daeec03dd.003.1","noaa_urn:oid:2.49.0.1.840.0.8747057c9e5cbaf6ad2186d9bbe7c84daeec03dd.001.1","noaa_urn:oid:2.49.0.1.840.0.8747057c9e5cbaf6ad2186d9bbe7c84daeec03dd.002.1","noaa_urn:oid:2.49.0.1.840.0.8747057c9e5cbaf6ad2186d9bbe7c84daeec03dd.004.1","noaa_urn:oid:2.49.0.1.840.0.25260ce3faef0b203d7d4ccc6a30000598780a57.001.1","noaa_urn:oid:2.49.0.1.840.0.6a86eab5c237f9a268874b8eb37c7d025efc7f85.001.1","noaa_urn:oid:2.49.0.1.840.0.6960fb84905785dfe268d07adece4938e13eef7c.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 in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.