This alert expired on 6 July 2026 at 04:15 UTC. It is kept here as a record.
No stronger detection stands among the 324 recorded within 20 km of this point since 12 March 2026 — 214 others scored the same. Another comparable one was recorded here earlier the same day. 16 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 5 at 11:56PM EDT until July 6 at 12:15AM EDT by NWS Mount Holly NJ
An estimated 3,647,335 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 11, 2026 · score 52 · 1.6 km
- March 12, 2026 · score 52 · 4.7 km
- March 17, 2026 · score 52 · 6.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 52 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) | 52 / 100 |
| Our confidence | 85% |
| Coordinates | 39.7550, -75.1350 |
| Nearest City | Sewell (2 km) |
| Population Exposed | 3.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-06T03:56:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.6c15704b1fb42f5bf6ee486e5dfea11ae30210de.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Camden, NJ; Cumberland, NJ; Gloucester, NJ; Salem, NJ; Philadelphia, PA |
| Headline | Severe Thunderstorm Warning issued July 5 at 11:56PM EDT until July 6 at 12:15AM EDT by NWS Mount Holly NJ |
| Expires | 2026-07-06T00:15:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| Google News RssFeed | weather |
| Google News SourceName | FOX 29 Philadelphia |
| MergedSources | [{"id":"gnews_weather_495360_176","source":"google_news","severity":"medium","severityValue":40,"timestamp":1783296484000,"latitude":39.95,"longitude":-75.16}] |
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 52/100, near Sewell (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.