This alert expired on 2 September 2026 at 14:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 13 detections recorded within 20 km of this point since 16 April 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 2 at 10:06AM EDT until September 2 at 10:15AM EDT by NWS Buffalo NY
An estimated 102,978 people live within 50 km of this point.
Nearby, since 16 April 2026
- July 3, 2026 · score 28 · 14.0 km
- June 10, 2026 · score 43 · 22.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Our confidence | 81% |
| Coordinates | 43.2557, -76.7452 |
| Nearest City | Oswego (30 km) |
| Population Exposed | 103.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T14:06:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.aa7522f288600a124c34d0fb5b4594116e7400d8.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Cayuga, NY; Oswego, NY |
| Headline | Severe Thunderstorm Warning issued September 2 at 10:06AM EDT until September 2 at 10:15AM EDT by NWS Buffalo NY |
| Expires | 2026-09-02T10:15:00-04:00 |
| 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 near Oswego?
Calamity.live data shows a weather event with CalamityScore 37/100, near Oswego (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.