This alert expired on 3 August 2026 at 01:45 UTC. It is kept here as a record.
It is the 8th strongest of the 50 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 2 at 7:43PM EDT until August 2 at 9:45PM EDT by NWS Buffalo NY
An estimated 1,083,910 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 2, 2026 · score 46 · 8.1 km
- July 3, 2026 · score 46 · 11.2 km
- June 18, 2026 · score 52 · 11.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 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) | 46 / 100 |
| Our confidence | 81% |
| Coordinates | 42.8617, -78.8528 |
| Nearest City | Buffalo (4 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-02T23:43:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.6b8f93d854b402eab3b96a6ce18bc2dc |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Upper Niagara River and Buffalo Harbor; Ripley to Dunkirk NY; Dunkirk to Buffalo NY; Ripley to Buffalo NY extending from 5NM off shoreline to US-Canadian border; Ripley to Dunkirk NY; Dunkirk to Buffalo NY; Ripley to Buffalo NY extending from 5NM off shoreline to US-Canadian border; 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 August 2 at 7:43PM EDT until August 2 at 9:45PM EDT by NWS Buffalo NY |
| Expires | 2026-08-02T21:45:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6b8f93d854b402eab3b96a6ce18bc2dc8107e45f.001.1","noaa_urn:oid:2.49.0.1.840.0.e252ba110d743504d01f336b5b54c5306d4920ec.001.1","noaa_urn:oid:2.49.0.1.840.0.87edaaf49b7a01d68237c7f7226bd5164791a5ec.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 Buffalo?
Calamity.live data shows a weather event with CalamityScore 46/100, near Buffalo (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.