This alert expired on 12 August 2026 at 00:00 UTC. It is kept here as a record.
It is the 30th strongest of the 46 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: Severe Thunderstorm Warning issued August 11 at 7:33PM EDT until August 11 at 8:00PM EDT by NWS Louisville KY
Nearby, since 15 March 2026
- May 24, 2026 · score 43 · 18.1 km
- June 22, 2026 · score 43 · 21.1 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 70 % 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) | 22 / 100 |
| Our confidence | 70% |
| Coordinates | 38.6846, -86.4155 |
| Nearest City | Seymour (55 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-11T23:33:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.f5d03a750322ef773a72dc2b58a2a9fa |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Crawford, IN; Harrison, IN; Orange, IN; Washington, IN; Crawford, IN; Harrison, IN; Jackson, IN; Jennings, IN and 4 more areas |
| Headline | Severe Thunderstorm Warning issued August 11 at 7:33PM EDT until August 11 at 8:00PM EDT by NWS Louisville KY |
| Expires | 2026-08-11T20:00:00-04:00 |
| SenderName | NWS Louisville KY |
| HasExactCoords | true |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f5d03a750322ef773a72dc2b58a2a9faba685bf0.001.1","noaa_urn:oid:2.49.0.1.840.0.00a859d5558f93dae7f8dabf648ae27328ecc7e6.001.1","noaa_urn:oid:2.49.0.1.840.0.283ad673e963b7f9b6c58a9d3d69e54cef98974d.002.1","noaa_urn:oid:2.49.0.1.840.0.3664ca657b6389321e73ca765577705537f30901.001.1","noaa_urn:oid:2.49.0.1.840.0.a8ca3a6f93164252f0f1c97bb2ae09875c9a8cbe.001.1","noaa_urn:oid:2.49.0.1.840.0.b9cee7c8e6cf7ec9fb1d78816064d93aeef4e7f0.001.1","noaa_urn:oid:2.49.0.1.840.0.46114a9c3b33fad3ca2b88843a7efdaf7301074e.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_D_39.080_-85.720_1786475700000","source":"iem","severity":"low","severityValue":25,"timestamp":1786475700000,"latitude":39.08,"longitude":-85.72},{"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 in this area?
Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.