The National Weather Service has issued a Flash Flood Watch for Orange and Rockland counties from Wednesday afternoon until Thursday.
"A cold frontal passage will produce a round of showers and thunderstorms across the area late Wednesday into late Wednesday night. Due to wet antecedent conditions, the area is susceptible to flooding," the National Weather Service states in its weather advisory.
Showers and thunderstorms, mainly after 8 p.m. are expected. Some of the storms could produce gusty winds and heavy rain, officials say.
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While a Flash Flood Watch has yet to be issued for the rest of the Hudson Valley, heavy rain is expected, with the chance of extreme weather.
"Showers are thunderstorms are expected for late (Wednesday) afternoon through (Wednesday) evening and into the first part of the night. There is a marginal to slight risk for severe thunderstorms," the National Weather Service states for Ulster, Dutchess, Columbia and Greene counties as well as the Capital Region. "The main threat will be damaging wind gusts as storms track west to east across the area. Brief, isolated tornadoes cannot be ruled out as well. Showers and thunderstorms will be capable of producing heavy downpours. There is a marginal to slight risk for flash flooding. Urban, low lying and poor drainage areas are most as risk, especially for locations that recently experienced flooding."
Dutchess County Executive Marc Molinaro warns residents the storm could be severe, with flash flooding and a tornado possible.
"Some of the storms may be severe, containing damaging winds. An isolated tornado is also possible too," Molinaro said. "In addition, showers and thunderstorms will be capable of producing heavy downpours, which may result in isolated to scattered flash flooding. Urban, low lying and poor drainage areas will be most susceptible to flooding, especially those that saw flooding last week."
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