Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is in it.
This alert expired on 21 September 2026 at 22:05 UTC. It is kept here as a record.
What the source measured
NOAA reported: Flash Flood Warning issued September 21 at 5:55PM EDT until September 21 at 6:00PM EDT by NWS Jackson KY
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 16 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 37.3100, -82.2572 |
| Nearest City | Bristol (79 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-21T21:55:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.8621761424d0a4b038da434db8d6be9206ce5681.001.1 |
Physical priority index · v5. 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: 2026-09-21T21:55:00.000Z.
First archived: 2026-09-21T21:58:05.719Z. 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 | Pike, KY; Buchanan, VA; Dickenson, VA; McDowell, WV; Wyoming, WV |
| Headline | Flash Flood Warning issued September 21 at 5:55PM EDT until September 21 at 6:00PM EDT by NWS Jackson KY |
| Expires | 2026-09-21T18:05:00-04:00 |
| SenderName | NWS Jackson KY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8621761424d0a4b038da434db8d6be9206ce5681.001.1","noaa_urn:oid:2.49.0.1.840.0.2ad3eacf8e9e5870cc3e2adc9fe7238251b038c5.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 19 E Vansant |
| Spc County | Buchanan |
| Spc State | VA |
| Spc Comments | Tree down blocking the road. (RLX) |
| Iem TypeSummary | D |
| Iem City | 19 E Vansant |
| Iem County | Buchanan |
| Iem State | VA |
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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