Long Island is bracing for a possible nor’easter that could dump several inches of snow on the tri-state area this week, but the forecast is nowhere near certain.

The worst-case scenario for LI includes up to 60 mph wind gusts, coastal flooding and beach erosion along with a mix of snow and rain Wednesday into Thursday, according to Upton-based National Weather Service meteorologists.

There’s also a possibility the winter storm could go out to sea without impacting LI. But, if it does roll ashore, it could bring the kind of heavy, wet snow that downs trees and power lines, in turn causing power outages, forecasters warn.

Tuesday is forecast as mostly sunny with a high of 44 in the calm before the possible storm, but there’s a chance snow could start early Wednesday morning when temperatures drop down to 32 overnight.

If the storm hits Wednesday, the precipitation may turn to rain during the day when temps rise above freezing to near 40, but the chance of snow resumes after sundown into Thursday morning.

Next weekend is otherwise expected to be clear with sunny skies in the forecast for Friday, Satuday and Sunday.