This alert expired on 10 August 2026 at 14:00 UTC. It is kept here as a record.
It is the 26th strongest of the 40 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 21 July 2026.
What the source measured
NOAA reported: Special Marine Warning issued August 10 at 7:55AM EDT until August 10 at 10:00AM EDT by NWS Cleveland OH
An estimated 420,938 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 11, 2026 · score 43 · 5.5 km
- July 18, 2026 · score 52 · 9.2 km
- July 21, 2026 · score 43 · 15.7 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 81 % 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 41.6279, -82.3535 |
| Nearest City | Lorain (24 km) |
| Population Exposed | 420.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T11:55:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.8743dc4a5dbb34f72f600612a3da8aab |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Avon Point to Willowick OH; Willowick to Geneva-on-the Lake OH; Avon Point to Willowick OH beyond 5 nm off shoreline to US-Canadian border; Willowick to Geneva-on-the-Lake OH beyond 5NM off shoreline to US-Canadian border; The Islands to Vermilion OH; Vermilion to Avon Point 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; Reno Beach to The Islands OH; Reno Beach to The Islands OH beyond 5NM off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued August 10 at 7:55AM EDT until August 10 at 10:00AM EDT by NWS Cleveland OH |
| Expires | 2026-08-10T10:00:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8743dc4a5dbb34f72f600612a3da8aab3911b89f.001.1","noaa_urn:oid:2.49.0.1.840.0.4bfdfdc79473a6d07de2299f2ae1c012a037bea5.001.1","noaa_urn:oid:2.49.0.1.840.0.5b2111d160765fde48c9af3a3141a4dde617232c.002.1"] |
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 Lorain?
Calamity.live data shows a weather event with CalamityScore 43/100, near Lorain (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.