Right now
The most recent data we hold from NOAA arrived 9 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 2 June 2026 at 21:30 UTC. It is kept here as a record.
It is the 30th strongest of the 239 detections recorded within 20 km of this point since 2 April 2026. Another comparable one was recorded here earlier the same day. 20 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued June 1 at 8:38AM CDT until June 2 at 4:25PM CDT by NWS St Louis MO
An estimated 183,819 people live within 50 km of this point.
Nearby, since 2 April 2026
- June 9, 2026 · score 43 · 5.6 km
- June 2, 2026 · score 43 · 7.0 km
- June 3, 2026 · score 43 · 7.8 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 | 38.5670, -94.1843 |
| Nearest City | Raymore (35 km) |
| Population Exposed | 183.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-03T12:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.bb75ac6059715c853117b28492300328 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Boone, MO; St. Clair, MO; Vernon, MO; Vernon, MO and 7 more areas |
| Headline | Flood Warning issued June 1 at 8:38AM CDT until June 2 at 4:25PM CDT by NWS St Louis MO |
| Expires | 2026-06-02T16:30:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bb75ac6059715c853117b2849230032847edf9de.001.1","noaa_urn:oid:2.49.0.1.840.0.4822290b61e84886972ba18def993cf883200e97.003.1","noaa_urn:oid:2.49.0.1.840.0.4822290b61e84886972ba18def993cf883200e97.002.1","noaa_urn:oid:2.49.0.1.840.0.7bdc6792fefa2b857842e8c4e32e14f4eec0dffb.002.1","noaa_urn:oid:2.49.0.1.840.0.7bdc6792fefa2b857842e8c4e32e14f4eec0dffb.001.1","noaa_urn:oid:2.49.0.1.840.0.ea6cb7e44ff60746d500e09e4cbb3506c3af014d.001.1","noaa_urn:oid:2.49.0.1.840.0.92f3145ca3b9e8715b7026903a1ad77afbb07051.001.1","noaa_urn:oid:2.49.0.1.840.0.8d122d123abeb9ebc2a7d541f8fa00e6098c3297.001.1","noaa_urn:oid:2.49.0.1.840.0.4d25dfe1b42523337210a0ffe0233545961bdf85.001.1","noaa_urn:oid:2.49.0.1.840.0.61778dd7d8df54f9cb18df16b406842558387748.001.1"] |
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.
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