Reported by SPC today.
It is the 35th strongest of the 89 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 2 September 2026.
What the source measured
SPC reported: Wind UNK kt near 3 SSW Grand Valley, Warren, PA. Multiple trees down along Selkirk Road. (CTP)
Nearby, since 17 March 2026
- August 9, 2026 · score 34 · 9.6 km
- August 2, 2026 · score 58 · 12.1 km
- June 6, 2026 · score 22 · 13.2 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 58 % 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 | 58% |
| Coordinates | 41.6900, -79.5600 |
| Nearest City | Jamestown (53 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-03T04:10:26.019Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 3 SSW Grand Valley |
| County | Warren |
| State | PA |
| Comments | Multiple trees down along Selkirk Road. (CTP) |
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 spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.