This alert expired on 2 September 2026 at 12:00 UTC. It is kept here as a record.
It is the 11th strongest of the 16 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 12 August 2026.
What the source measured
NOAA reported: Special Marine Warning issued September 2 at 7:13AM EDT until September 2 at 8:00AM EDT by NWS Buffalo NY
An estimated 93,834 people live within 50 km of this point.
Nearby, since 17 March 2026
- June 26, 2026 · score 48 · 12.8 km
- June 26, 2026 · score 58 · 14.0 km
- July 3, 2026 · score 39 · 19.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 32 / 100 |
| Our confidence | 81% |
| Coordinates | 43.4450, -78.6071 |
| Nearest City | Lockport (31 km) |
| Population Exposed | 93.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T11:13:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.0df6f5d02473359182da90badb8ea339404c7ab9.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Niagara River to Hamlin Beach NY; Niagara River to Hamlin Beach NY beyond 5NM off shoreline to US-Canadian border; Lower Niagara River; Niagara River to Hamlin Beach NY; Niagara River to Hamlin Beach NY beyond 5NM off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued September 2 at 7:13AM EDT until September 2 at 8:00AM EDT by NWS Buffalo NY |
| Expires | 2026-09-02T08:00:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0df6f5d02473359182da90badb8ea339404c7ab9.001.1","noaa_urn:oid:2.49.0.1.840.0.4f03e494c3298823a12e13d138485605e4080e0f.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 in this area?
Calamity.live data shows a weather event with CalamityScore 32/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.