This alert expired on 10 August 2026 at 15:45 UTC. It is kept here as a record.
No stronger detection stands among the 43 recorded within 20 km of this point since 15 March 2026 — 2 others scored the same. The last comparable one was on 2 August 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 10 at 10:39AM EDT until August 10 at 11:45AM EDT by NWS Buffalo NY
An estimated 129,550 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 26, 2026 · score 43 · 10.1 km
- June 11, 2026 · score 37 · 14.1 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 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) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 42.3713, -79.7055 |
| Nearest City | Erie (41 km) |
| Population Exposed | 129.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-10T14:39:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.202032a8feb5c9f53fb17fe834933e28 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Ripley to Dunkirk NY; Dunkirk to Buffalo NY; Ripley to Buffalo NY extending from 5NM off shoreline to US-Canadian border; Conneaut OH to Ripley NY; Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued August 10 at 10:39AM EDT until August 10 at 11:45AM EDT by NWS Buffalo NY |
| Expires | 2026-08-10T11:45:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.202032a8feb5c9f53fb17fe834933e28e0462980.001.1","noaa_urn:oid:2.49.0.1.840.0.419829fe9128b9c220a40b0a1e91a630fba6e289.001.1"] |
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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.