Sleet forms when snow melts in a warm layer above ... This creates a glassy, icy glaze on roads, sidewalks, trees, and power lines, leading to a high risk of accidents and power outages.

The NWS says sleet forms when snowflakes fall through warmer air but don't completely melt. Unlike the thin layer of freezing air near the ground that causes freezing rain, sleet needs a deeper layer ...

Sleet is melted snow that refreezes before reaching ... and freezes on contact with the ground or other objects. This can glaze surfaces with ice, making them extremely slick.

Total snow and sleet accumulations between 1 and 3 inches and ice accumulations around a light glaze. Morris and Sussex counties - noon Saturday to 4 a.m. Sunday: Mixed precipitation expected.

When will it start snowing in Mississippi? Learn more about winter storm set to bring ice, deep cold snap to Mississippi. Be ready for freezing temps.