Right now
The most recent data we hold from NOAA arrived 30 minutes ago, and this point is in it.
5 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert expired on 22 September 2026 at 06:45 UTC. It is kept here as a record.
It is the 27th strongest of the 37 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued September 22 at 1:25AM EDT until September 22 at 2:45AM EDT by NWS Jackson KY
Nearby, since 16 March 2026
- September 22, 2026 · score 28 · 13.9 km
How we know
2 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 | 0.66/1 |
| Coordinates | 36.5846, -83.6232 |
| Nearest City | Morristown (51 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-22T05:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.9e31a490d22e22ae076a8c90b069bdfd39f934f0.001.1 |
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: 2026-09-22T05:25:00.000Z.
First archived: 2026-09-22T05:30:05.680Z. Material modification: 2026-09-22T06:24:05.087Z.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-22T06:24:05.087Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-22T06:07:58.364Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-22T05:51:44.423Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-22T05:46:22.471Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-22T05:41:00.157Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
2026-09-22T05:35:35.511Z · data_change
Index 16 → 16; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Harlan, KY; Cumberland, TN; Wise, VA; City of Norton, VA |
| Headline | Flash Flood Warning issued September 22 at 1:25AM EDT until September 22 at 2:45AM EDT by NWS Jackson KY |
| Expires | 2026-09-22T02:45:00-04:00 |
| SenderName | NWS Jackson KY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.9e31a490d22e22ae076a8c90b069bdfd39f934f0.001.1","noaa_urn:oid:2.49.0.1.840.0.4bbbd147aa0b32ed2914e7cef8aadd08d213e5ce.001.1","noaa_urn:oid:2.49.0.1.840.0.59f8e1b2f50b37b00597cbd0702699e0b2c33bc4.001.1"] |
| Iem TypeSummary | F |
| Iem City | Ages |
| Iem County | Harlan |
| Iem State | KY |
| Iem Wfo | JKL |
| Iem Remark | Corrects previous flash flood report from Ages. Law enforcement reported KY 38 was shut down at Ages. Pictures showed debris and flowing water over KY-38. Time is estimated. |
| MergedSources | [{"id":"iem_F_36.860_-83.250_1790051400000","source":"iem","severity":"low","severityValue":25,"timestamp":1790051400000,"latitude":36.86,"longitude":-83.25}] |
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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