This alert expired on 18 July 2026 at 01:30 UTC. It is kept here as a record.
It is the 24th strongest of the 67 detections recorded within 20 km of this point since 28 April 2026. The last comparable one was on 27 May 2026.
What the source measured
NOAA reported: Flash Flood Warning issued July 17 at 6:31PM EDT until July 17 at 9:30PM EDT by NWS Indianapolis IN
An estimated 249,735 people live within 50 km of this point.
Nearby, since 28 April 2026
- July 18, 2026 · score 43 · 0.0 km
- August 7, 2026 · score 48 · 10.6 km
- May 19, 2026 · score 48 · 15.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 80 % 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 39.5135, -84.9205 |
| Nearest City | Oxford (15 km) |
| Population Exposed | 249.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-17T22:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.1026e577456b588f027f2249b8483bfa |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Tipton, IN; Hamilton, OH; Clermont, OH; Hamilton, OH |
| Headline | Flash Flood Warning issued July 17 at 6:31PM EDT until July 17 at 9:30PM EDT by NWS Indianapolis IN |
| Expires | 2026-07-17T21:30:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1026e577456b588f027f2249b8483bfa09f1bb44.001.1","noaa_urn:oid:2.49.0.1.840.0.cd4d71e8125ccd77cf0e591527e7bed34b52ebd9.001.1","noaa_urn:oid:2.49.0.1.840.0.14d57513653897e703079c4cc224dcc46661d36c.001.1"] |
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 Oxford?
Calamity.live data shows a weather event with CalamityScore 43/100, near Oxford (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.