This alert expired on 2 September 2026 at 23:15 UTC. It is kept here as a record.
It is the 18th strongest of the 31 detections recorded within 20 km of this point since 1 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 6:37PM EDT until September 2 at 7:15PM EDT by NWS State College PA
Nearby, since 1 April 2026
- July 7, 2026 · score 22 · 15.0 km
- July 11, 2026 · score 22 · 20.8 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 60 % 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) | 16 / 100 |
| Our confidence | 60% |
| Coordinates | 41.8049, -78.3978 |
| Nearest City | Jamestown (77 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-02T22:37:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.304517f785f5e228a2107e4d2c8bff63baebc58a.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Bedford, PA; Fulton, PA; Clarion, PA; Forest, PA; Allegany, NY; Livingston, NY; Monroe, NY; Ontario, NY; Wyoming, NY and 1 more areas |
| Headline | Severe Thunderstorm Warning issued September 2 at 6:37PM EDT until September 2 at 7:15PM EDT by NWS State College PA |
| Expires | 2026-09-02T19:15:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.304517f785f5e228a2107e4d2c8bff63baebc58a.001.1","noaa_urn:oid:2.49.0.1.840.0.b8c674c4932816bf6f228f5b4b86402ee6906b02.001.1","noaa_urn:oid:2.49.0.1.840.0.381ebfdb8b2d7742ae47793c02011328e0db3bab.001.1","noaa_urn:oid:2.49.0.1.840.0.db7abf0a6e36a09c4b0bbc519d340b2e9e76c4a1.001.1"] |
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 16/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.