Flash Flood in Suffolk County, New York
Flash Flood August 13, 2014 · Suffolk County, New York
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
The Sagtikos Parkway southbound was closed at Exit S2, Crooked Hill Rd., in Brentwood due to flooding. Storm total rainfall amounts reported in Suffolk County ranged from 0.14 inches in Montauk to 13.27 inches at Islip/MacArthur Airport with a 24 hour rainfall record of 13.78 inches at MacArthur Airport which broke the New York State record. Damage amounts are validated costs of damage assessment inspections of municipal property, $11.7 million, and $23.5 million for small business administration loans as a result of the FEMA private property and business damage assessment. This information was provided by the Suffolk County Office of Emergency Management.
The wider storm
A surface low with its associated warm front approached the area early in the morning before partially lifting through. This boundary provided the focus for very heavy rain in an extremely moist air mass and resulted in historic flash flooding on Long Island. New York State's 24 hour rainfall record was broken with 13.78 inches of rainfall being reported by the Automated Surface Observing System at Islip MacArthur Airport.
Began near Pine Aire (40.7992, -73.2779).
Source: NOAA Storm Events Database, event 542776. Narratives are written by the National Weather Service forecast office that issued the report.
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