A coastal flood warning is in effect until 2 p.m. today as high tide is expected to bring moderate to major flooding along the bays and the Peconic River, the National Weather Service warned.
The heaviest flooding is expected to occur along the Peconic River at Riverhead, where tides of 7 to 7 1/2 feet have been predicted, about four feet higher than standard, according to the NWS. To the east, Orient Harbor is expected to see tides as high as 6 to 7 feet causing moderate flooding.
Long Island’s most severe flooding with Monday’s high tide occurs along the south shore of the North Fork. Historically, the busy downtown areas of Riverhead and Greenport have been among the most flood-prone areas.
“The potential for major localized coastal flooding is primarily along Peconic Bay and the Peconic Riverfront,” the NWS wrote in its warning, saying tides could rise up to three feet above the ground in some areas. . “The exact potential threat areas for major localized coastal flooding will depend on how long before high tide storm-force easterly winds subside and whether gale-force southerly winds develop at the time of high tide. high tide.”
High tide will be between 8 a.m. at Orient and 10 a.m. at Riverhead, according to the NWS.
The Town of Riverhead urged motorists to move all vehicles out of the riverside parking area and residents in flood-prone areas to exercise caution during high tide.
After heavy rain overnight, more rain may exist through mid-morning across the North Fork. Winds in excess of 20 mph are forecast through mid-afternoon. Gusts could reach 40 mph, the NWS warned.
While the temperature is expected to reach 48 degrees on Monday, it is expected to drop back below freezing on Tuesday.