Flash Flood in Bergen County, New Jersey

Flash Flood August 6, 2024 · Bergen County, New Jersey

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Video showing Grand Avenue closed with more than a foot of water and a stalled van in the flood waters.

The wider storm

Several rounds of heavy thunderstorms developed over the area on the afternoon of August 6th. A slow moving frontal system stalled out over the area. PWATs of 2-2.2 inches and a sharp gradient of MUCAPE peaking out over the area near 2500 J/kg allowed for the development of strong thunderstorms producing torrential rainfall with rates upwards of 1.5-2.5 inches per hour. Total rainfall was 1-3 inches with localized amount up to 4-5 inches.

Began near Coytesville (40.8800, -73.9800).

Source: NOAA Storm Events Database, event 1212549. Narratives are written by the National Weather Service forecast office that issued the report.

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