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 19 July 2026 at 00:15 UTC. It is kept here as a record.
It is the 19th strongest of the 85 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 18 at 6:00PM EDT until July 18 at 8:15PM EDT by NWS Charleston WV
Urban PEI: 34,885 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- July 18, 2026 · score 34 · 0.0 km
- August 27, 2026 · score 28 · 2.1 km
- August 8, 2026 · score 34 · 7.5 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 | 0.79/1 |
| Coordinates | 39.5563, -80.6367 |
| Nearest City | Clarksburg (40 km) |
| Urban exposure index (PEI) | 34.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T22:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.6b2a66c1a446e668eed4839421bb8cdd |
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: 2026-07-18T22:00:00.000Z.
First archived: 2026-07-18T22:11:21.484Z. 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 | Cabell, WV; Putnam, WV; Scioto, OH; Washington, OH; Pleasants, WV; Ritchie, WV; Wirt, WV; Wood, WV and 6 more areas |
| Headline | Flash Flood Warning issued July 18 at 6:00PM EDT until July 18 at 8:15PM EDT by NWS Charleston WV |
| Expires | 2026-07-18T20:15:00-04:00 |
| SenderName | NWS Charleston WV |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6b2a66c1a446e668eed4839421bb8cdd5418a92f.001.1","noaa_urn:oid:2.49.0.1.840.0.15091fc0b1fa435ffe0e1afb165837db2e0a9849.001.1","noaa_urn:oid:2.49.0.1.840.0.05a8574b0d77278d72a1ac835772aa2e2a5243f3.001.1","noaa_urn:oid:2.49.0.1.840.0.a726a52fa3ced0638ff4ba361583276f0a66acd7.001.1","noaa_urn:oid:2.49.0.1.840.0.422ba5869a154675d2579e7cfbcbc4d98bbd4fe1.001.1","noaa_urn:oid:2.49.0.1.840.0.eeb25013ddec34af3ea9b53ddc9228e20cbbb5f5.001.1","noaa_urn:oid:2.49.0.1.840.0.45e02c26fc17355866c2e20dfca3194941d951c6.001.1","noaa_urn:oid:2.49.0.1.840.0.3b86e4249051198b6fead54e404a332b8c856ca0.001.1","noaa_urn:oid:2.49.0.1.840.0.41e58bcf648519c6bcb58deca23a68960ce323ef.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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