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Flash Flood Alert Hits Delaware and New Jersey
New Jersey, Mount Holly, USAFriday, July 10, 2026
Alert issued: 1:37 p.m. Thursday, July 9
Duration: Until 5:45 p.m.
Affected Areas
- Delaware – southeastern Delaware County
- New Jersey – northern New Castle County; parts of Gloucester and Salem counties in the south
- Pennsylvania – portions surrounding Wilmington, Newark, and Philadelphia
What the Radar Shows
- Heavy showers producing 1–2 inches of rain in just one hour
- Additional rainfall possible, threatening already saturated areas
Communities at Risk
- Wilmington, Newark, Philadelphia
- Highways: I‑295, I‑476, New Jersey Turnpike, stretches of I‑95
Why It Matters
- Flash floods can move quickly, damage roads, buildings, and trigger mudslides
- Even areas not currently raining can be at risk if water has already pooled
Additional Reminders
- Watch for fire hazards and keep emergency supplies ready.
- Follow local instructions closely; stay alert for any weather changes.
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