Right now
The most recent data we hold from NOAA arrived 5 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 10 July 2026 at 20:00 UTC. It is kept here as a record.
No stronger detection stands among the 57 recorded within 20 km of this point since 15 March 2026 — 44 others scored the same. Another comparable one was recorded here earlier the same day. 14 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 10 at 12:44PM CDT until July 10 at 3:00PM CDT by NWS St Louis MO
Urban PEI: 18,181 within a heuristic 50 km radius; not unique people.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 37.6461, -90.7898 |
| Nearest City | Farmington (36 km) |
| Urban exposure index (PEI) | 18.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-10T17:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.af9e5ce73983a8b309e1948db1a392f2 |
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: 2026-07-10T17:44:00.000Z.
First archived: 2026-07-10T17:47:53.838Z. 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 | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Madison, MO; Washington, MO; Iron, MO; Reynolds, MO and 3 more areas |
| Headline | Flash Flood Warning issued July 10 at 12:44PM CDT until July 10 at 3:00PM CDT by NWS St Louis MO |
| Expires | 2026-07-10T15:00:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.af9e5ce73983a8b309e1948db1a392f2db64478d.001.1","noaa_urn:oid:2.49.0.1.840.0.917c2967d9f5db78ae94ebb067d71f73117d4483.001.1","noaa_urn:oid:2.49.0.1.840.0.eaa84b05b7b25759b2acc8ccb174b09d34fe288d.001.1","noaa_urn:oid:2.49.0.1.840.0.0090213559e01eb932558d540fdd29e003d1ae80.001.1","noaa_urn:oid:2.49.0.1.840.0.efecf7c888397ca72d90ad6ec9ac515b80085d2f.001.1","noaa_urn:oid:2.49.0.1.840.0.2ba110ea5deced8f6db9b65ecef9a5cc6f6791f3.001.1"] |
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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