This alert expired on 30 June 2026 at 13:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 11 detections recorded within 20 km of this point since 30 June 2026.
What the source measured
NOAA reported: Special Marine Warning issued June 30 at 7:52AM EDT until June 30 at 9:15AM EDT by NWS Buffalo NY
An estimated 59,995 people live within 50 km of this point.
Nearby, since 30 June 2026
- July 3, 2026 · score 39 · 1.5 km
- September 2, 2026 · score 46 · 20.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100, at 80 % 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) | 39 / 100 |
| Our confidence | 80% |
| Coordinates | 43.5283, -78.3800 |
| Nearest City | Lockport (47 km) |
| Population Exposed | 60.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-30T11:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.4c1b9e68c39310ee517c88212f1e71f1c0a84464.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Niagara River to Hamlin Beach NY; Hamlin Beach to Sodus Bay NY; Niagara River to Hamlin Beach NY beyond 5NM off shoreline to US-Canadian border; Hamlin Beach to Sodus Bay NY beyond 5NM off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued June 30 at 7:52AM EDT until June 30 at 9:15AM EDT by NWS Buffalo NY |
| Expires | 2026-06-30T09:15:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.