Reported by SPC 3 days ago.
It is the 15th strongest of the 80 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind UNK kt near 1 S Upper Oxford Twp, Chester, PA. Tree damage between Oxford and Russellville. Time estimated from radar. (PHI)
An estimated 416,031 people live within 50 km of this point.
Nearby, since 17 March 2026
- August 28, 2026 · score 43 · 0.0 km
- June 15, 2026 · score 43 · 6.8 km
- August 8, 2026 · score 37 · 9.9 km
How we know
Confirmed by 22 independent sources, including SPC.
Our own score for this event is 43 out of 100, at 88 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 88% |
| Coordinates | 39.8200, -75.9500 |
| Nearest City | Newark (23 km) |
| Population Exposed | 416.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-27T20:10:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 1 S Upper Oxford Twp |
| County | Chester |
| State | PA |
| Comments | Tree damage between Oxford and Russellville. Time estimated from radar. (PHI) |
| Iem TypeSummary | R |
| Iem Magnitude | 3.51 |
| Iem Unit | Inch |
| Iem City | Logan Twp |
| Iem County | Gloucester |
| Iem State | NJ |
| Iem Wfo | PHI |
| MergedSources | [{"id":"iem_D_39.740_-75.320_1787848500000","source":"iem","severity":"low","severityValue":25,"timestamp":1787848500000,"latitude":39.74,"longitude":-75.32},{"id":"iem_D_39.820_-75.950_1787861400000","source":"iem","severity":"low","severityValue":25,"timestamp":1787861400000,"latitude":39.82,"longitude":-75.95},{"id":"iem_R_39.830_-75.430_1787858400000","source":"iem","severity":"low","severityValue":25,"timestamp":1787858400000,"latitude":39.83,"longitude":-75.43},{"id":"iem_F_39.790_-75.400_1787859300000","source":"iem","severity":"low","severityValue":25,"timestamp":1787859300000,"latitude":39.79,"longitude":-75.4},{"id":"iem_R_39.780_-75.860_1787858400000","source":"iem","severity":"low","severityValue":25,"timestamp":1787858400000,"latitude":39.78,"longitude":-75.86},{"id":"iem_R_39.780_-75.490_1787859540000","source":"iem","severity":"low","severityValue":25,"timestamp":1787859540000,"latitude":39.78,"longitude":-75.49},{"id":"iem_R_39.760_-75.360_1787859480000","source":"iem","severity":"low","severityValue":25,"timestamp":1787859480000,"latitude":39.76,"longitude":-75.36},{"id":"iem_R_39.780_-75.490_1787855880000","source":"iem","severity":"low","severityValue":25,"timestamp":1787855880000,"latitude":39.78,"longitude":-75.49},{"id":"iem_R_39.800_-75.470_1787857980000","source":"iem","severity":"low","severityValue":25,"timestamp":1787857980000,"latitude":39.8,"longitude":-75.47},{"id":"iem_F_39.760_-75.510_1787852100000","source":"iem","severity":"low","severityValue":25,"timestamp":1787852100000,"latitude":39.76,"longitude":-75.51},{"id":"iem_F_39.800_-75.350_1787848680000","source":"iem","severity":"low","severityValue":25,"timestamp":1787848680000,"latitude":39.8,"longitude":-75.35},{"id":"iem_R_39.800_-75.470_1787859540000","source":"iem","severity":"low","severityValue":25,"timestamp":1787859540000,"latitude":39.8,"longitude":-75.47},{"id":"iem_R_39.780_-75.530_1787856000000","source":"iem","severity":"low","severityValue":25,"timestamp":1787856000000,"latitude":39.78,"longitude":-75.53},{"id":"iem_R_39.760_-75.360_1787858280000","source":"iem","severity":"low","severityValue":25,"timestamp":1787858280000,"latitude":39.76,"longitude":-75.36},{"id":"iem_R_39.780_-75.490_1787858340000","source":"iem","severity":"low","severityValue":25,"timestamp":1787858340000,"latitude":39.78,"longitude":-75.49},{"id":"iem_F_39.770_-75.480_1787852100000","source":"iem","severity":"low","severityValue":25,"timestamp":1787852100000,"latitude":39.77,"longitude":-75.48},{"id":"iem_R_39.800_-75.470_1787855700000","source":"iem","severity":"low","severityValue":25,"timestamp":1787855700000,"latitude":39.8,"longitude":-75.47},{"id":"iem_E_39.800_-75.460_1787846940000","source":"iem","severity":"low","severityValue":25,"timestamp":1787846940000,"latitude":39.8,"longitude":-75.46},{"id":"iem_R_39.760_-75.360_1787855880000","source":"iem","severity":"low","severityValue":25,"timestamp":1787855880000,"latitude":39.76,"longitude":-75.36},{"id":"iem_R_39.810_-75.460_1787856000000","source":"iem","severity":"low","severityValue":25,"timestamp":1787856000000,"latitude":39.81,"longitude":-75.46},{"id":"iem_R_39.800_-75.370_1787855400000","source":"iem","severity":"low","severityValue":25,"timestamp":1787855400000,"latitude":39.8,"longitude":-75.37}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 43/100, near Newark (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.