≋floodactive

Flash Flood Warning issued August 7 at 5:34PM EDT until August 7 at 8:30PM EDT by NWS Mount Holly NJ

8.0

40.2158° N, 74.6725° W·US-NJ

Started 2h ago

Event Details

Typeflood

Severity8.0

Statusactive

Location40.2158°N, 74.6725°W (US-NJ)

Started2026-08-07T21:34:00+00:00

Last Updated2026-08-08T00:20:03.771+00:00

Sourcenoaa_ahps

Source URLapi.weather.gov

Confidence1.00

Impact Zones

Catastrophic Impact Zone

Flash flooding or major flood stage. Immediate danger to life and property.

NWS polygon

Zone estimates are based on scientific models and may differ from actual local conditions.

Impact Analysis

Note: Zone 1 uses NWS polygon geometry. Exposure for this zone is pending polygon-based computation — totals reflect outer zones only.

Population from ACS 5-Year 2022 tract sampling; structure counts from Microsoft Building Footprints or Census ACS housing data, capped by USGS NLCD 2021 developed land. Estimates for situational awareness — not for actuarial, regulatory, or underwriting use.

Historical Comparison

2021 MERCER County, NEW JERSEY Flash Flood (2021)78% match

Flash Flood in NEW JERSEY, 24km from current event, $50M in recorded damage

MERCER County, NEW JERSEYDamage: $50.0MFatalities: 2

2007 BURLINGTON County, NEW JERSEY Flood (2007)77% match

Flood in NEW JERSEY, 8km from current event, $8M in recorded damage

BURLINGTON County, NEW JERSEYDamage: $8.0M

2021 PHILADELPHIA County, PENNSYLVANIA Flash Flood (2021)76% match

Flash Flood in PENNSYLVANIA, 30km from current event, $40M in recorded damage

PHILADELPHIA County, PENNSYLVANIADamage: $40.0M

Historical comparison based on peril type, geography, and severity. Past events do not predict future outcomes.

View on Live Map

US-NJ flood hazard profile All US hazard profiles Scoring methodology

Zone estimates are based on scientific models and may differ from actual local conditions.