This alert expired on 11 July 2026 at 19:30 UTC. It is kept here as a record.
No stronger detection stands among the 12 recorded within 20 km of this point since 25 May 2026 — 4 others scored the same. The last comparable one was on 29 May 2026.
What the source measured
NOAA reported: Flash Flood Warning issued July 11 at 3:06PM EDT until July 11 at 3:30PM EDT by NWS Wilmington OH
An estimated 1,174,395 people live within 50 km of this point.
Nearby, since 25 May 2026
- August 11, 2026 · score 52 · 8.5 km
- May 29, 2026 · score 52 · 15.1 km
- May 28, 2026 · score 52 · 15.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 39.6031, -82.8365 |
| Nearest City | Lancaster (23 km) |
| Population Exposed | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-11T19:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.a7902ff71facbcc32068aca3f95cddf3 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Wayne, IN; Clinton, OH; Warren, OH; Clinton, OH; Fayette, OH; Highland, OH and 3 more areas |
| Headline | Flash Flood Warning issued July 11 at 3:06PM EDT until July 11 at 3:30PM EDT by NWS Wilmington OH |
| Expires | 2026-07-11T15:30:00-04:00 |
| SenderName | NWS Wilmington OH |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a7902ff71facbcc32068aca3f95cddf330e0516d.002.1","noaa_urn:oid:2.49.0.1.840.0.51b33f7e0d98987723df139b2930075dc4449af3.001.1","noaa_urn:oid:2.49.0.1.840.0.050be80e6e3be7999e9b0e4cb22fd7a1e42019f6.001.1","noaa_urn:oid:2.49.0.1.840.0.0988f42b23555d433ba62a4ba8852bcc332704ea.001.1","noaa_urn:oid:2.49.0.1.840.0.d5dfa4572096d33121676a1e44b72fe845aaa5ee.001.1","noaa_urn:oid:2.49.0.1.840.0.7352f97e2c1d24b4ffe5d46b983b8a4b60627aa9.001.1"] |
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 Lancaster?
Calamity.live data shows a weather event with CalamityScore 52/100, near Lancaster (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 187 scientific monitoring sources.