This alert expired on 12 August 2026 at 02:00 UTC. It is kept here as a record.
It is the 21st strongest of the 125 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 27 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued August 11 at 7:45PM EDT until August 11 at 10:00PM EDT by NWS Jackson KY
An estimated 733,258 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 12, 2026 · score 48 · 0.0 km
- July 28, 2026 · score 48 · 0.0 km
- July 27, 2026 · score 48 · 0.0 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 89 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 48 / 100 |
| Our confidence | 89% |
| Coordinates | 37.8000, -84.3000 |
| Nearest City | Richmond (6 km) |
| Population Exposed | 733.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-11T23:45:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.b09e3b290b781686eb840aeaf10399b8 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Bath, KY; Bell, KY; Breathitt, KY; Clay, KY; Estill, KY; Harlan, KY; Jackson, KY; Knott, KY; Knox, KY; Laurel, KY; Lee, KY; Leslie, KY; Letcher, KY; McCreary, KY; Menifee, KY; Montgomery, KY; Owsley, KY; Perry, KY; Powell, KY; Pulaski, KY; Rockcastle, KY; Wayne, KY; Whitley, KY; Wolfe, KY; Breckinridge, KY; Hancock, KY; Hardin, KY; Larue, KY |
| Headline | Severe Thunderstorm Watch issued August 11 at 7:45PM EDT until August 11 at 10:00PM EDT by NWS Jackson KY |
| Expires | 2026-08-11T22:00:00-04:00 |
| SenderName | NWS Jackson KY |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b09e3b290b781686eb840aeaf10399b805dbdba5.002.1","noaa_urn:oid:2.49.0.1.840.0.e299345588d9dc8be4a53829a35163f0123ffb71.001.1"] |
| Iem TypeSummary | D |
| Iem City | 4 SSE Middleburg |
| Iem County | Casey |
| Iem State | KY |
| Iem Wfo | LMK |
| Iem Remark | Large tree down over the 2800 block of Calvary Ridge Road. |
| MergedSources | [{"id":"iem_D_37.890_-84.490_1786484820000","source":"iem","severity":"low","severityValue":25,"timestamp":1786484820000,"latitude":37.89,"longitude":-84.49},{"id":"iem_D_38.060_-84.610_1786482900000","source":"iem","severity":"low","severityValue":25,"timestamp":1786482900000,"latitude":38.06,"longitude":-84.61},{"id":"iem_F_37.270_-84.820_1786492200000","source":"iem","severity":"low","severityValue":25,"timestamp":1786492200000,"latitude":37.27,"longitude":-84.82},{"id":"iem_G_38.320_-84.040_1786481400000","source":"iem","severity":"low","severityValue":25,"timestamp":1786481400000,"latitude":38.32,"longitude":-84.04},{"id":"iem_D_37.290_-84.830_1786490700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786490700000,"latitude":37.29,"longitude":-84.83},{"id":"iem_D_37.300_-84.790_1786490700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786490700000,"latitude":37.3,"longitude":-84.79}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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.
Want to know when something happens near Richmond?
Calamity.live data shows a weather event with CalamityScore 48/100, near Richmond (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.