Right now
The most recent data we hold from NOAA arrived 11 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 26 June 2026 at 12:45 UTC. It is kept here as a record.
It is the 24th strongest of the 53 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 26 at 4:52AM CDT until June 26 at 7:45AM CDT by NWS Paducah KY
Urban PEI: 33,702 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- July 11, 2026 · score 34 · 12.6 km
- June 26, 2026 · score 34 · 13.8 km
- May 31, 2026 · score 40 · 21.8 km
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 | 0.80/1 |
| Coordinates | 36.9124, -90.0793 |
| Nearest City | Poplar Bluff (32 km) |
| Urban exposure index (PEI) | 33.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-26T09:52:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.f1c53642f74202e5e3a66460217d570f |
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: 2026-06-26T09:52:00.000Z.
First archived: 2026-06-26T10:44:17.661Z. 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 | Johnson, IL; Union, IL; Ripley, MO; Butler, MO |
| Headline | Flash Flood Warning issued June 26 at 4:52AM CDT until June 26 at 7:45AM CDT by NWS Paducah KY |
| Expires | 2026-06-26T07:45:00-05:00 |
| SenderName | NWS Paducah KY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f1c53642f74202e5e3a66460217d570fcaa3aaa1.001.1","noaa_urn:oid:2.49.0.1.840.0.e27bf84a585dbe9e90794e5152cb0cd257c2dac4.001.1","noaa_urn:oid:2.49.0.1.840.0.fd43fc99f68f36a637ce261e0b55ea8058f87d22.001.1"] |
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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