Right now
The most recent data we hold from NOAA arrived 4 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 18 June 2026 at 16:00 UTC. It is kept here as a record.
It is the 10th 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. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 18 at 9:04AM EDT until June 18 at 12:00PM EDT by NWS Louisville KY
Urban PEI: 158,739 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- July 11, 2026 · score 43 · 8.6 km
- March 16, 2026 · score 72 · 8.7 km
- September 15, 2026 · score 37 · 11.3 km
How we know
11 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 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) | 43 / 100 |
| Legacy data-support index | 0.89/1 |
| Coordinates | 37.9879, -85.2131 |
| Nearest City | Shelbyville (25 km) |
| Urban exposure index (PEI) | 158.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-18T13:04:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.dc987be56a347f89d61d4a7523056c19 |
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: 2026-06-18T13:04:00.000Z.
First archived: 2026-06-18T13:18:04.771Z. 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 | Anderson, KY; Boyle, KY; Bullitt, KY; Garrard, KY; Jessamine, KY; Mercer, KY; Nelson, KY; Spencer, KY; Washington, KY; Clark, IN; Crawford, IN; Floyd, IN; Harrison, IN; Orange, IN; Washington, IN; Henry, KY; Jefferson, KY; Oldham, KY; Shelby, KY; Trimble, KY; Clark, KY; Garrard, KY; Madison, KY and 4 more areas |
| Headline | Flash Flood Warning issued June 18 at 9:04AM EDT until June 18 at 12:00PM EDT by NWS Louisville KY |
| Expires | 2026-06-18T12:00:00-04:00 |
| SenderName | NWS Louisville KY |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.dc987be56a347f89d61d4a7523056c1903434e04.001.1","noaa_urn:oid:2.49.0.1.840.0.551ddeb1b791317b48508f0822b1118f5f1c05a6.001.1","noaa_urn:oid:2.49.0.1.840.0.51e9c1951741db75a630f50543a053929fc5dfcf.001.1","noaa_urn:oid:2.49.0.1.840.0.435294b5b5f8d4576d083003c5a5f722b966f2fa.001.1","noaa_urn:oid:2.49.0.1.840.0.5fd6258e2e95feddf926e66ee0b84779789d4f91.001.1","noaa_urn:oid:2.49.0.1.840.0.dbbb3c201185a592a11329bb8a5298731c70e397.001.1","noaa_urn:oid:2.49.0.1.840.0.fbe675272754478ee450d30a247a0956886e1660.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 1 SW Prospect |
| Spc County | Jefferson |
| Spc State | KY |
| Spc Comments | West of intersection wires completely down obstructing the road. (LMK) |
| Iem TypeSummary | D |
| Iem City | 1 NW Pewee Valley |
| Iem County | Oldham |
| Iem State | KY |
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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