This alert expired on 18 July 2026 at 21:30 UTC. It is kept here as a record.
No stronger detection stands among the 26 recorded within 20 km of this point since 16 March 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued July 18 at 4:19PM EDT until July 18 at 5:30PM EDT by NWS Cleveland OH
An estimated 117,846 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 2, 2026 · score 43 · 9.7 km
- July 21, 2026 · score 43 · 12.0 km
- June 14, 2026 · score 43 · 12.2 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 79 % 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 | 79% |
| Coordinates | 42.0938, -80.3992 |
| Nearest City | Erie (26 km) |
| Population Exposed | 117.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T20:19:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.af2ae3235581d2484fef4ef2988d7ed6 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Conneaut OH to Ripley NY; Conneaut OH to Ripley NY 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 4:19PM EDT until July 18 at 5:30PM EDT by NWS Cleveland OH |
| Expires | 2026-07-18T17:30:00-04:00 |
| SenderName | NWS Cleveland OH |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.af2ae3235581d2484fef4ef2988d7ed6d8fc9cca.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 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 Erie?
Calamity.live data shows a weather event with CalamityScore 43/100, near Erie (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.