This alert expired on 3 September 2026 at 00:15 UTC. It is kept here as a record.
No stronger detection stands among the 46 recorded within 20 km of this point since 16 March 2026 — one other scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Special Marine Warning issued September 2 at 7:48PM EDT until September 2 at 8:15PM EDT by NWS Buffalo NY
An estimated 855,206 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 2, 2026 · score 46 · 15.7 km
- September 3, 2026 · score 41 · 16.0 km
- September 3, 2026 · score 54 · 17.1 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 54 out of 100, at 90 % 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 | High |
| Calamity Score (ours) | 54 / 100 |
| Our confidence | 90% |
| Coordinates | 42.8651, -78.5587 |
| Nearest City | Depew (11 km) |
| Population Exposed | 855.2K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-09-02T23:48:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.a6a1b4413de2486973bc92984e2cda90e225ddde.002.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | 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; Sodus Bay to Mexico 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; Sodus Bay to Mexico Bay NY beyond 5NM off shoreline to US-Canadian border |
| Headline | Special Marine Warning issued September 2 at 7:48PM EDT until September 2 at 8:15PM EDT by NWS Buffalo NY |
| Expires | 2026-09-02T20:15:00-04:00 |
| SenderName | NWS Buffalo NY |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a6a1b4413de2486973bc92984e2cda90e225ddde.002.1","noaa_urn:oid:2.49.0.1.840.0.777e18d39b5a93b9aa88a0eaf9754db1bb947bc5.001.1","noaa_urn:oid:2.49.0.1.840.0.b93708accc80d3162fbbb4104b06e3cb7f758c47.001.1"] |
| Spc ReportType | hail |
| Spc Speed | 125 |
| Spc Location | Silver Springs |
| Spc County | Wyoming |
| Spc State | NY |
| Spc Comments | Picture of half dollar sized hail from social media. (BUF) |
| Iem TypeSummary | D |
| Iem City | 2 SSW Castile |
| Iem County | Wyoming |
| Iem State | NY |
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 Depew?
Calamity.live data shows a weather event with CalamityScore 54/100, near Depew (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.