This alert expired on 18 July 2026 at 22:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 42 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 10 July 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 18 at 4:54PM EDT until July 18 at 6:45PM EDT by NWS Cleveland OH
An estimated 789,364 people live within 50 km of this point.
Nearby, since 17 March 2026
- August 19, 2026 · score 48 · 4.8 km
- September 3, 2026 · score 37 · 6.4 km
- May 9, 2026 · score 48 · 7.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 79 % 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 | 79% |
| Coordinates | 41.7967, -81.2673 |
| Nearest City | Painesville (9 km) |
| Population Exposed | 789.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T20:54:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.1ec9295ae1add319347ac46ca11f91ed |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Vermilion to Avon Point OH; Avon Point to Willowick OH; The Islands to Vermilion OH beyond 5 nm off shoreline to US-Canadian border; Vermilion to Avon Point OH beyond 5 nm off shoreline to US-Canadian border; Avon Point to Willowick OH beyond 5 nm off shoreline to US-Canadian border; Willowick to Geneva-on-the Lake OH; Geneva-on-the-Lake to Conneaut OH; Willowick to Geneva-on-the-Lake OH beyond 5NM off shoreline to US-Canadian border; Geneva-on-the-Lake to Conneaut OH beyond 5 nm off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued July 18 at 4:54PM EDT until July 18 at 6:45PM EDT by NWS Cleveland OH |
| Expires | 2026-07-18T18:45:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.1ec9295ae1add319347ac46ca11f91edee418893.001.1","noaa_urn:oid:2.49.0.1.840.0.ffbdf00c8f8e93f346e9b3d44ebee350fd77d4f7.001.1"] |
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 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 Painesville?
Calamity.live data shows a weather event with CalamityScore 48/100, near Painesville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.