Long Islanders should brace for more wind, waves and weather issues this week.

A low-pressure front off the coast of the Carolinas could move into the region Wednesday as a nor'easter, bringing with it sustained winds of 20 to 35 mph and gusts between 40 and 60 mph, with the higher blasts hitting coastal areas.

"The North Shore will be facing more of the fetch of the winds," said National Weather Service Meteorologist Joey Picca. "High surf and winds may be on the South Shore."

Coming on the heels of Sandy, the wind could topple weakened power lines and trees and the waves could flood areas already breached or washed over by the Sandy's fierce storm surge. Fire Island was breached in three places and countless other areas saw dunes washed over by waves.

"A rise in the level of water might have a little more of an impact that it would have before Sandy," Picca said. "We lost some of the protections that might have existed with sandbars, berms, jetties, what have you."

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Moriches Inlet to Montauk Point could see 10- to 15-foot waves Wednesday and 7- to 10-foot waves Thursday. The coast from Fire Island to Moriches could see waves of 8 to 13 feet Wednesday and 4 to 7 feet on Thursday, according to a National Weather Service marine forecast issued Sunday morning.

"Any type of surge where there's a breach, it's going to push a lot more water into [Great South] Bay," said Aram Terchunian, a coastal geologist with First Coastal Corp. in Westhampton Beach.

The storm comes as temperatures are falling and hundreds of thousands of LIPA power customers are without electricity.

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Temperatures Sunday night are expected to dip into the upper 30s around New York City, Brooklyn and Queens, the mid 30s for Nassau and western Suffolk and lower 30s for central to eastern Suffolk.

Monday night will be even colder, with low to mid-30s in the city and nearby boroughs, lower 30s in Nassau and Western Suffolk. Central and eastern Suffolk will see lower 30s and the Central Pine Barrens region could get into the 20s, weather service meteorologist John Murray said.