Reported by SPC today.
It is the 229th strongest of the 392 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind UNK kt near Mantua, Gloucester, NJ. Fire Dept reports a tree into a house with 2 people trapped on Main Street in Mantua. No known injuries at time of report. (PHI)
An estimated 3,663,993 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 6, 2026 · score 52 · 4.9 km
- July 11, 2026 · score 52 · 5.9 km
- July 11, 2026 · score 52 · 6.1 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 46 out of 100, at 85 % 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) | 46 / 100 |
| Our confidence | 85% |
| Coordinates | 39.7900, -75.1700 |
| Nearest City | Sewell (3 km) |
| Population Exposed | 3.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-02T00:58:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | Mantua |
| County | Gloucester |
| State | NJ |
| Comments | Fire Dept reports a tree into a house with 2 people trapped on Main Street in Mantua. No known injuries at time of report. (PHI) |
| Iem TypeSummary | D |
| Iem City | Mantua |
| Iem County | Gloucester |
| Iem State | NJ |
| Iem Wfo | PHI |
| Iem Remark | Downed Tree/Wires on NJ 45 Both Directions North of CR 632/Berkeley Rd/Mantua Rd (Mantua Twp), All lanes closed northbound; All lanes closed southbound. Time estimated from radar. |
| MergedSources | [{"id":"iem_D_39.790_-75.170_1788310680000","source":"iem","severity":"low","severityValue":25,"timestamp":1788310680000,"latitude":39.79,"longitude":-75.17},{"id":"iem_D_39.790_-75.170_1788310860000","source":"iem","severity":"low","severityValue":25,"timestamp":1788310860000,"latitude":39.79,"longitude":-75.17}] |
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.
Want to know when something happens near Sewell?
Calamity.live data shows a weather event with CalamityScore 46/100, near Sewell (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.