Reported by SPC today.
It is the 126th strongest of the 300 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 1 ESE Parkesburg, Chester, PA. Tree on wires. Time estimated by radar. (PHI)
An estimated 553,915 people live within 50 km of this point.
Nearby, since 17 March 2026
- August 27, 2026 · score 48 · 1.4 km
- June 12, 2026 · score 37 · 8.6 km
- July 28, 2026 · score 48 · 8.7 km
How we know
One source: SPC. Not yet confirmed by a second, independent source.
Our own score for this event is 41 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) | 41 / 100 |
| Our confidence | 81% |
| Coordinates | 39.9500, -75.8900 |
| Nearest City | West Chester (24 km) |
| Population Exposed | 553.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T01:22:02.583Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 1 ESE Parkesburg |
| County | Chester |
| State | PA |
| Comments | Tree on wires. Time estimated by radar. (PHI) |
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 West Chester?
Calamity.live data shows a weather event with CalamityScore 41/100, near West Chester (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.