Event Summary

As a cold front moved slowly east, a wave of low pressure developed along the Southeast U.S. Coast and moved slowly north as a large area of high pressure off the New England Coast remained nearly stationary. Abundant moisture from the remnants of tropical system Tammy over the Southeast also interacted with and converged north along this front. Rain moved north and developed across the region during Friday afternoon, October 7th. As the wave of low pressure moved north along the front, periods of heavy rain spread north across the region Friday night through Saturday, October 8th. Rain ended from west to east during Sunday, October 9th as the low moved northeast of the region. The heaviest rain fell north of New York City across the Lower Hudson Valley. Heavy rain resulted in significant flooding on some rivers, most small brooks and streams, and throughout urban areas in low lying and poor drainage areas. Rainfall amounts ranged from 1.10 inch at Westhampton Beach in Suffolk County to 12.05 inches at New Windsor in Orange County. Here are selected rainfall amounts in hundredths of an inch for: Bronx County - 4.16 inches was measured at Parkchester. New York County - 4.50 inches was measured at Central Park. Kings County - from 2.20 inches at Avenue V in Brooklyn to 2.70 inches at Sheepshead Bay. Queens County - from 1.84 inches at John F. Kennedy Airport to 4.01 inches at LaGuardia Airport.