As much as five inches of snow could hit Long Island Friday as a winter storm moves across the region, forecasters said.

On Friday, the National Weather Service’s Upton office said the entire region is under a winter weather advisory, including eastern Suffolk County, which had originally been placed under a winter storm warning.

Initially, the weather service said 7 inches of snow could possibly fall on the East End but a Friday morning update indicated less accumulation. The current forecast calls for 3-5 inches across the Island.

Despite the adjusted outlook, forecasters are still warning drivers of slippery roads and limited visibility of a half-mile at times.

The storm is expected to taper off to snow showers and flurries Friday afternoon. The evening is expected to be dry but temperatures are going to plunge to the mid-teens and wind chill values could be in the single digits.

The weekend forecast calls for clear skies but chilly weather. Saturday will be around 29 degrees during the day before falling into the teens at night. Same goes for Sunday.

Long Islanders who interpreted the recent warm-up as winter conceding to spring early should brace for even more winter weather. As it stands, there’s a chance of snow Monday night through Wednesday and temperatures will be near freezing.

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