A winter weather advisory has been issued for most of Long Island from 6 a.m. to noon on Saturday as a low-pressure system moves in, bringing with it a mix of snow, sleet and freezing rain.

The advisory is not in effect for eastern Suffolk, which will see mostly rain, the National Weather Service said.

In the advisory area, light snow and sleet is expected to develop after sunrise, but that will quickly change to light freezing rain and then rain, forecasters said.

Less than an inch of snow and one tenth an inch of ice may accumulate, forecasters said.

"Conditions will become slippery," the weather service said in its advisory. "Caution is urged while driving."

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