Right now
The most recent data we hold from NOAA arrived 23 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 24 September 2026 at 03:15 UTC. It is kept here as a record.
What the source measured
NOAA reported: Flash Flood Warning issued September 23 at 10:53PM EDT until September 23 at 11:15PM EDT by NWS Jackson KY
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 | 36.6202, -83.5234 |
| Nearest City | Morristown (50 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-09-24T02:53:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.32021f5988480f049a7588818d7b33c1536bb1aa.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: 2026-09-24T02:53:00.000Z.
First archived: 2026-09-24T02:57:32.529Z. 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 | Harlan, KY; Knox, TN; Bell, KY; Harlan, KY; Leslie, KY |
| Headline | Flash Flood Warning issued September 23 at 10:53PM EDT until September 23 at 11:15PM EDT by NWS Jackson KY |
| Expires | 2026-09-23T23:15:00-04:00 |
| SenderName | NWS Jackson KY |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.32021f5988480f049a7588818d7b33c1536bb1aa.001.1","noaa_urn:oid:2.49.0.1.840.0.81cea689c4a6222834ed7f79ed2a940a30c1972f.001.1","noaa_urn:oid:2.49.0.1.840.0.07a739d9a0fa7723b9f88528196a02e37aaa5d87.001.1","noaa_urn:oid:2.49.0.1.840.0.b4b6be0328452fa63d28e17347133b3feb627366.001.1"] |
| Iem TypeSummary | F |
| Iem City | Halls |
| Iem County | Knox |
| Iem State | TN |
| Iem Wfo | MRX |
| Iem Remark | Three cars submerged by flooding at Andersonville Pike and East Emory Road. |
| MergedSources | [{"id":"iem_F_36.050_-83.900_1790213100000","source":"iem","severity":"low","severityValue":25,"timestamp":1790213100000,"latitude":36.05,"longitude":-83.9},{"id":"iem_R_36.930_-83.530_1790210340000","source":"iem","severity":"low","severityValue":25,"timestamp":1790210340000,"latitude":36.93,"longitude":-83.53},{"id":"iem_F_36.020_-83.860_1790215200000","source":"iem","severity":"low","severityValue":25,"timestamp":1790215200000,"latitude":36.02,"longitude":-83.86},{"id":"iem_F_36.080_-83.930_1790213100000","source":"iem","severity":"low","severityValue":25,"timestamp":1790213100000,"latitude":36.08,"longitude":-83.93}] |
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.
Review the area, threshold and delivery channel in your account.
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