Flash Flood — Bronx, New York

2022-07-18 · near Fordham, Bronx, New York

Event narrative

Flooding on I-87 Major Deegan Expressway northbound and southbound at West 231st Street.

Wider weather episode

Several rounds of heavy thunderstorms developed in the warm sector of a frontal system on July 18th, 2022. These thunderstorms developed in an environment with 2 to 2.3 inch PWAT values and CAPE near 3000 J/kg. Training thunderstorms produced a widespread 1 to 3 inches of rainfall with localized spots up to 4 to 5 inches.

View location on OpenStreetMap → (40.8630, -73.9036)

Source: NOAA Storm Events Database, event_id 1048807. Narrative written by the NWS forecast office that issued the report.