This alert expired on 22 July 2026 at 00:45 UTC. It is kept here as a record.
It is the 14th strongest of the 30 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 21 July 2026. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 21 at 8:13PM EDT until July 21 at 8:45PM EDT by NWS Buffalo NY
An estimated 26,985 people live within 50 km of this point.
Nearby, since 17 March 2026
- July 18, 2026 · score 67 · 3.1 km
- July 21, 2026 · score 37 · 5.1 km
- July 18, 2026 · score 67 · 5.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Our confidence | 80% |
| Coordinates | 42.8522, -77.0522 |
| Nearest City | Auburn (40 km) |
| Population Exposed | 27.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-22T00:13:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2960e63cc9168ed9e0f66ed9b70fa534c18eaad7.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ontario, NY |
| Headline | Severe Thunderstorm Warning issued July 21 at 8:13PM EDT until July 21 at 8:45PM EDT by NWS Buffalo NY |
| Expires | 2026-07-21T20:45:00-04:00 |
| 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 in this area?
Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.