Flash Flood — Passaic, New Jersey

2024-08-06 · near Lake View, Passaic, New Jersey

Event narrative

Flooding on US 46 Eastbound at CR 628 and Piaget Ave with all lanes closed.

Wider weather episode

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.

View location on OpenStreetMap → (40.8792, -74.1571)

Source: NOAA Storm Events Database, event_id 1212548. Narrative written by the NWS forecast office that issued the report.