Right now
The most recent data we hold from NOAA arrived 3 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 12 July 2026 at 21:33 UTC. It is kept here as a record.
It is the 2nd strongest of the 74 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 12 at 5:23PM EDT until July 12 at 5:30PM EDT by NWS Charleston WV
Urban PEI: 63,894 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 12, 2026 · score 39 · 10.3 km
- September 13, 2026 · score 32 · 11.1 km
- June 12, 2026 · score 39 · 12.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 38.0760, -81.5969 |
| Nearest City | Charleston (31 km) |
| Urban exposure index (PEI) | 63.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-12T21:23:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.c63b57583d080e27cc9de2bc69c7ccf8 |
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: 2026-07-12T21:23:00.000Z.
First archived: 2026-07-12T21:26:20.362Z. 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 | Boone, WV; Fayette, WV; Kanawha, WV; Lincoln, WV; Putnam, WV; Floyd, KY; Pike, KY; Gilmer, WV and 4 more areas |
| Headline | Flash Flood Warning issued July 12 at 5:23PM EDT until July 12 at 5:30PM EDT by NWS Charleston WV |
| Expires | 2026-07-12T17:33:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c63b57583d080e27cc9de2bc69c7ccf80cfe4040.001.1","noaa_urn:oid:2.49.0.1.840.0.3f731f5bb1206f6341dd66a30453faa94c02b4b3.001.1","noaa_urn:oid:2.49.0.1.840.0.2e4f54fd386b00e785de55011279ebdb42755b9b.001.1","noaa_urn:oid:2.49.0.1.840.0.db5afc5a61b6a22de6aca1c5861a8c8c1aa9c1a5.001.1","noaa_urn:oid:2.49.0.1.840.0.a5f36a50bb7e4ee6ae2b9cd4e57d4c283dd0f1c5.001.1","noaa_urn:oid:2.49.0.1.840.0.63893ca7d83349c219df99c92322a7cc23a6a206.001.1","noaa_urn:oid:2.49.0.1.840.0.050fbf6f3fb8ccfed7f9da67105abfb45ee555ad.001.1","noaa_urn:oid:2.49.0.1.840.0.62f37b4e475f2790d52123855ee8c6551f7ce6b2.001.1"] |
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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