Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
14 other detections within 20 km in the last 24 hours, the nearest 3 km from here.
This alert expired on 24 September 2026 at 01:45 UTC. It is kept here as a record.
It is the 8th strongest of the 50 detections recorded within 20 km of this point since 11 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 September 23 at 7:29PM EDT until September 23 at 9:45PM EDT by NWS Jackson KY
Nearby, since 11 March 2026
- September 23, 2026 · score 16 · 2.5 km
- September 23, 2026 · score 16 · 7.1 km
- March 11, 2026 · score 22 · 16.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 | 0.60/1 |
| Coordinates | 37.4538, -82.7280 |
| Nearest City | Kingsport (102 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-23T23:29:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.818a6860dd36326870bf39da4c673c8a7c6b1042.001.1 |
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: 2026-09-23T23:29:00.000Z.
First archived: 2026-09-23T23:34:16.913Z. Material modification: 2026-09-23T23:50:49.967Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-23T23:50:49.967Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Martin, KY; Boone, WV; Lincoln, WV; Logan, WV; Boone, WV; Lincoln, WV and 12 more areas |
| Headline | Flash Flood Warning issued September 23 at 7:29PM EDT until September 23 at 9:45PM EDT by NWS Jackson KY |
| Expires | 2026-09-23T21:45:00-04:00 |
| SenderName | NWS Jackson KY |
| HasExactCoords | true |
| MergedCount | 15 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.818a6860dd36326870bf39da4c673c8a7c6b1042.001.1","noaa_urn:oid:2.49.0.1.840.0.73a86d8bafc4ccd75bc96da4310302067807bb4f.001.1","noaa_urn:oid:2.49.0.1.840.0.610ae01604b9ea82f560716a2ba739feaeac4821.001.1","noaa_urn:oid:2.49.0.1.840.0.7d3cfe00cfc5a4c4ec5a8b58a7ce763be3b847e0.001.1","noaa_urn:oid:2.49.0.1.840.0.c36c792871c64966a2dac9e94a7250620b0e0d6f.001.1","noaa_urn:oid:2.49.0.1.840.0.55dfd621860a66ab127951561e462bd9794d4f29.001.1","noaa_urn:oid:2.49.0.1.840.0.0da5948e7b3a8dff136d6373c122603976c0232b.001.1","noaa_urn:oid:2.49.0.1.840.0.cdbc9c128c7a8df3d6c185523cca420f5952ef66.001.1","noaa_urn:oid:2.49.0.1.840.0.e715821a833d1db7ce28021d79f2bd4c3d72fb35.001.1","noaa_urn:oid:2.49.0.1.840.0.b1ba0a8ebff10c91ff36fcc9dc1756b2b613a7ad.001.1","noaa_urn:oid:2.49.0.1.840.0.6c773ec52e60f466886998a6f11c9e8ecd892237.001.1","noaa_urn:oid:2.49.0.1.840.0.d581fdaf5bb92d37e54f57d134cdd7b242ad7252.002.1","noaa_urn:oid:2.49.0.1.840.0.482f6d6cc00b25b78bb09bd0c875a388343a5536.002.1","noaa_urn:oid:2.49.0.1.840.0.135e9e7055469281c3e37e7416952cd2de382a95.001.1","noaa_urn:oid:2.49.0.1.840.0.9a0d9b94de83eaab4aceadf0992661fd69297f0d.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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