(Updated: Jan. 23 5 a.m.) A significant coastal storm is expected today into Tuesday with high winds, heavy rain and coastal impacts, according to the National Weather Service in New York.
A high wind warning remains in effect through 1 a.m. Tuesday and a coastal flood warning is in effect from 3 until 11 p.m. today.
Northeast winds of 25 to 35 mph will gust up to 55 mph today, with the strongest winds coming to the East End this afternoon, according to an updated high wind warning issued by the National Weather Service this morning.
Light rain today may become heavy tonight, with total precipitation of 1 to 3 inches and locally higher amounts possible, the weather service said.
High tides at 3 to 4 feet above astronomical tides will cause moderate coastal flooding along the eastern bays during tonight’s high tides, according to the coastal flood warning. There is potential for widespread flooding of vulnerable shore roads and adjacent properties due to the height of the storm tide and wave action, according to the warning issued by the National Weather Service.
High surf of 8 to 12 feet caused by hurricane-force winds immediately off the island’s south shore is expected to cause widespread dune erosion and localized overwashes along the Atlantic Ocean beachfront late tonight into Tuesday, according to the weather service.
A storm warning remains in effect through 1 a.m. Tuesday for the Long Island Sound and Peconic and Gardiners bays due to northeast winds of 30 to 40 kt with gusts up to 55 kt and seas of 6 to 11 feet on eastern Long Island Sound.
There is a hurricane force wind warning in effect for the waters off the south shore, where easterly winds of 35 to 45 kt will gust up to 65 kt this afternoon. Seas of 11 to 16 feet off the coast, will build to 14 to 19 feet this afternoon.
Winds and heavy precipitation should fall off later tonight, according to the forecast. Rain from the slow-moving storm will continue through Tuesday.