This alert expired on 12 August 2026 at 00:30 UTC. It is kept here as a record.
It is the 3rd strongest of the 234 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 11 August 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 11 at 8:06PM EDT until August 11 at 8:30PM EDT by NWS Wilmington OH
An estimated 924,632 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 16, 2026 · score 48 · 3.0 km
- June 27, 2026 · score 48 · 3.2 km
- August 11, 2026 · score 48 · 3.4 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 90 % 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 | 90% |
| Coordinates | 38.2859, -85.7392 |
| Nearest City | Jeffersonville (1 km) |
| Population Exposed | 924.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-12T00:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.1b09189c234524ab4dbc13e6758b059b |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Switzerland, IN; Boone, KY; Carroll, KY; Gallatin, KY; Grant, KY; Kenton, KY; Owen, KY; Pendleton, KY; Floyd, IN; Harrison, IN; Bullitt, KY; Hardin, KY; Jefferson, KY; Meade, KY; Crawford, IN; Harrison, IN; Perry, IN; Breckinridge, KY; Meade, KY |
| Headline | Severe Thunderstorm Warning issued August 11 at 8:06PM EDT until August 11 at 8:30PM EDT by NWS Wilmington OH |
| Expires | 2026-08-11T20:30:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1b09189c234524ab4dbc13e6758b059b2347397f.002.1","noaa_urn:oid:2.49.0.1.840.0.88ef7cdd73c6cd5bff9cc6b6f832f253db598947.001.1","noaa_urn:oid:2.49.0.1.840.0.dc145d1222e383bdbb4324545f806eccd3d7feeb.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 S Salem |
| Iem County | Washington |
| Iem State | IN |
| Iem Wfo | LMK |
| MergedSources | [{"id":"iem_H_38.520_-86.350_1786490700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786490700000,"latitude":38.52,"longitude":-86.35},{"id":"iem_H_38.560_-86.100_1786488600000","source":"iem","severity":"low","severityValue":25,"timestamp":1786488600000,"latitude":38.56,"longitude":-86.1}] |
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 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 Jeffersonville?
Calamity.live data shows a weather event with CalamityScore 48/100, near Jeffersonville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.