Event Summary

Two severe weather episodes occurred during July 12th: the first occurred during the afternoon from around 2:30 pm until 6:30 pm, the second from around 11 pm until 1:30 am on the 13th. Both severe weather episodes brought damaging winds, including a tornado that developed in Grandview On Hudson in Rockland County and tracked east to northeast across Central Westchester County as an F2 tornado before it dissipated east of North Greenwich in Fairfield County, Connecticut. Thunderstorms also produced torrential rain that caused flash flooding of the FDR service road at 34th Street in the Murray Hill Section of Manhattan. During the second episode, emergency managers reported a wall collapse in Washington Heights between 10th and 11th Avenues. A trained spotter reported downed trees in Syosset. Law enforcement reported downed trees and power lines in Huntington, Dix Hills, Commack, and Greenlawn. Thunderstorms produced flash flooding in East Meadow and Nesconset, which resulted in road closures.