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 17 June 2026 at 05:15 UTC. It is kept here as a record.
No stronger detection stands among the 150 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. 77 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued June 15 at 12:09PM CDT until June 23 at 1:00AM CDT by NWS St Louis MO
An estimated 129,330 people live within 50 km of this point.
Nearby, since 4 April 2026
- June 17, 2026 · score 43 · 0.9 km
- May 18, 2026 · score 22 · 13.5 km
- June 17, 2026 · score 22 · 16.8 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 | 39.1332, -91.8354 |
| Nearest City | Columbia (47 km) |
| Population Exposed | 129.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T18:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.17814c3a7ecc825b5cb4f51e9e1bb170 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Calhoun, IL; Greene, IL; Jersey, IL; Pike, IL; Scott, IL; Gasconade, MO; Montgomery, MO and 32 more areas |
| Headline | Flood Warning issued June 15 at 12:09PM CDT until June 23 at 1:00AM CDT by NWS St Louis MO |
| Expires | 2026-06-17T00:15:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 38 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.17814c3a7ecc825b5cb4f51e9e1bb170c5cb14cc.001.1","noaa_urn:oid:2.49.0.1.840.0.8f1a4060bb698b45d291a6b7e0729d7e538a0d9a.001.1","noaa_urn:oid:2.49.0.1.840.0.f23ffda5eb9afb232cb8bd5d28e3fd003c2112b5.001.1","noaa_urn:oid:2.49.0.1.840.0.d0c339f7937a11f1145093831f4db3e1f5630482.001.1","noaa_urn:oid:2.49.0.1.840.0.cbc028e481c004f06f6292a55e32411a6d398081.001.1","noaa_urn:oid:2.49.0.1.840.0.cbc028e481c004f06f6292a55e32411a6d398081.003.1","noaa_urn:oid:2.49.0.1.840.0.cbc028e481c004f06f6292a55e32411a6d398081.004.1","noaa_urn:oid:2.49.0.1.840.0.cbc028e481c004f06f6292a55e32411a6d398081.002.1","noaa_urn:oid:2.49.0.1.840.0.45e66aecc3a2b9e4930bbb6ab12cb2e61b9775ec.001.1","noaa_urn:oid:2.49.0.1.840.0.575c4df06ac91b184122ace4c0dc553edf7cb0ab.003.1","noaa_urn:oid:2.49.0.1.840.0.575c4df06ac91b184122ace4c0dc553edf7cb0ab.001.1","noaa_urn:oid:2.49.0.1.840.0.575c4df06ac91b184122ace4c0dc553edf7cb0ab.002.1","noaa_urn:oid:2.49.0.1.840.0.e70017d32a859baa15d011e4e64dcc1dde4d3307.001.1","noaa_urn:oid:2.49.0.1.840.0.e70017d32a859baa15d011e4e64dcc1dde4d3307.002.1","noaa_urn:oid:2.49.0.1.840.0.6cf2db484259573b777ffe30aae7dc9e35dfe178.002.1","noaa_urn:oid:2.49.0.1.840.0.6cf2db484259573b777ffe30aae7dc9e35dfe178.003.1","noaa_urn:oid:2.49.0.1.840.0.6cf2db484259573b777ffe30aae7dc9e35dfe178.001.1","noaa_urn:oid:2.49.0.1.840.0.0aa92ac3d2a5c519705ebf7dafed7dca857b645c.001.1","noaa_urn:oid:2.49.0.1.840.0.d2bcc2f8174b6902f343fa8b03e70416359bb1a5.002.1","noaa_urn:oid:2.49.0.1.840.0.d2bcc2f8174b6902f343fa8b03e70416359bb1a5.001.1","noaa_urn:oid:2.49.0.1.840.0.2f8e38e5a31390ba6bef852fd181b1e462674a9a.001.1","noaa_urn:oid:2.49.0.1.840.0.7af069a81d42358c38c39ccf2f958598d6cd9a2d.004.1","noaa_urn:oid:2.49.0.1.840.0.7af069a81d42358c38c39ccf2f958598d6cd9a2d.001.1","noaa_urn:oid:2.49.0.1.840.0.7af069a81d42358c38c39ccf2f958598d6cd9a2d.006.1","noaa_urn:oid:2.49.0.1.840.0.7af069a81d42358c38c39ccf2f958598d6cd9a2d.002.1","noaa_urn:oid:2.49.0.1.840.0.7af069a81d42358c38c39ccf2f958598d6cd9a2d.003.1","noaa_urn:oid:2.49.0.1.840.0.7af069a81d42358c38c39ccf2f958598d6cd9a2d.005.1","noaa_urn:oid:2.49.0.1.840.0.56749540f4da06b558cce1d3c0166082e993ad8f.001.1","noaa_urn:oid:2.49.0.1.840.0.56749540f4da06b558cce1d3c0166082e993ad8f.002.1","noaa_urn:oid:2.49.0.1.840.0.92bf09f4291f58ac044fabd96fc48f324dd7036c.003.1","noaa_urn:oid:2.49.0.1.840.0.5875ce12a799c92364c0035e019e3fb339029918.001.1","noaa_urn:oid:2.49.0.1.840.0.f767d3a9920baa2b527f2920ca96a3d7a44a505e.002.1","noaa_urn:oid:2.49.0.1.840.0.f767d3a9920baa2b527f2920ca96a3d7a44a505e.001.1","noaa_urn:oid:2.49.0.1.840.0.3e31d5b95baa8f0bc82290c52ca1207b61180c88.001.1","noaa_urn:oid:2.49.0.1.840.0.3e31d5b95baa8f0bc82290c52ca1207b61180c88.002.1","noaa_urn:oid:2.49.0.1.840.0.1748bcf47658143d1f1aa8941aff32c4551bc9a1.001.1","noaa_urn:oid:2.49.0.1.840.0.af908c5cc3497b889d4d5228cc6b9548641c5039.001.1","noaa_urn:oid:2.49.0.1.840.0.26b84f36d2e639590b419493e55d1b8b0109ac95.001.1"] |
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.