Watches, Warnings, and Advisories

Current Watches, Warnings and Advisories for Northwest Suffolk (NYZ078) New York Issued by the National Weather Service


Flash Flood Watch Flash Flood Watch - Northwest Suffolk (New York)

Updated:04/19/2019 3:06am
Effective:04/20/2019 2:00am
Expires:04/20/2019 8:00pm

Areas affected: Northeast Suffolk; Northwest Suffolk; Southeast Suffolk; Southwest Suffolk
Instructions: A flash flood watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should flash flood warnings be issued.

Message summary: ...flash flooding possible late tonight into saturday...
...flash flood watch remains in effect from late tonight through saturday evening...
The flash flood watch continues for
* portions of southern connecticut and southeast new york, including the following areas, in southern connecticut, northern middlesex, northern new haven, northern new london, southern middlesex, southern new haven, and southern new london. In southeast new york, northeastern suffolk, northwestern suffolk, southeastern suffolk, and southwestern suffolk.
* from late tonight through saturday evening
* a slow moving frontal system will approach the region early saturday. Heavy rain will become likely early saturday and last through saturday afternoon. Total rainfall amounts will be around 1 inch with locally higher amounts possible. Excessive runoff will be possible which would lead to flooding of urban and poor drainage areas. In addition, smaller rivers and streams could overflow their banks.
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Source: NWS Watches, Warnings or Advisories for zone NYZ078

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