This alert expired on 23 May 2026 at 05:15 UTC. It is kept here as a record.
It is the 3rd strongest of the 160 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 22 at 10:05PM EDT until May 23 at 1:15AM EDT by NWS Louisville KY
An estimated 976,697 people live within 50 km of this point.
Nearby, since 15 March 2026
- March 16, 2026 · score 48 · 1.3 km
- July 21, 2026 · score 41 · 4.4 km
- June 22, 2026 · score 48 · 11.6 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 85 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 85% |
| Coordinates | 38.0584, -85.6901 |
| Nearest City | Okolona (9 km) |
| Population Exposed | 976.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-23T02:05:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.2569b89adb10d65fb0824c85b297868a |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Henry, KY; Shelby, KY; Breckinridge, KY |
| Headline | Flash Flood Warning issued May 22 at 10:05PM EDT until May 23 at 1:15AM EDT by NWS Louisville KY |
| Expires | 2026-05-23T01:15:00-04:00 |
| SenderName | NWS Louisville KY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2569b89adb10d65fb0824c85b297868a6b1f8bbb.001.1","noaa_urn:oid:2.49.0.1.840.0.0564b263a352dbbbff6e38a6371f2a3e67537449.001.1"] |
| Iem TypeSummary | F |
| Iem City | 1 W Graefenburg |
| Iem County | Shelby |
| Iem State | KY |
| Iem Wfo | LMK |
| Iem Remark | Water flowing over Bardstown Trail. Road is closed. |
| MergedSources | [{"id":"iem_F_38.150_-85.050_1779492600000","source":"iem","severity":"low","severityValue":25,"timestamp":1779492600000,"latitude":38.15,"longitude":-85.05}] |
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 10 February 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.
Want to know when something happens near Okolona?
Calamity.live data shows a weather event with CalamityScore 48/100, near Okolona (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.