Event Summary

As a cold front moved slowly east and displaced warm, moist, and unstable air; lines of heavy showers and thunderstorms occurred. Torrential rain resulted in widespread flash flooding of streets, low lying and poor drainage areas, mainly in 2 lines: one line extending across Western Staten Island northeast across Hudson County, NJ and another line extending from the Eastern Shores of Staten Island northeast across Western Brooklyn, Southern Manhattan, and Northwest Queens. The highest rainfall rates were between 2 and 3 inches per hour. The Storm Total Rainfall at LaGuardia Airport was 2.78 inches and at Central Park was 1.98 inches. The New York City Office of Emergency Management reported flooding of several main roads which resulted in partial closures of the FDR Drive at 116th Street in Manhattan, Sections of the Belt Parkway in Brooklyn, and Sections of the Brooklyn Queens Expressway in Queens along with the N and R Subway Tunnels flooded. People waded through knee deep water near Carroll Street and Fourth Ave., which also flooded basements in Brooklyn. Spotters reported significant street flooding in Annadale, where sewers and septics also backed up onto the streets.