HALIFAX -- A wintry mix of snow, ice pellets and freezing rain tracked eastward over Atlantic Canada Friday, with forecasters warning the low pressure system could interrupt holiday travel and threaten power lines.

Environment Canada issued weather alerts warning of potentially icy roads, slippery sidewalks, heavy rain and strong winds across much of the region.

Most of New Brunswick was blanketed by freezing rain warnings while special weather statements in Nova Scotia and P.E.I. indicated snow would change over to ice pellets, freezing rain, and rain before diminishing to scattered showers Saturday morning.

The Halifax Regional Municipality said in a tweet crews were busy clearing snow but warned motorists and pedestrians to proceed with caution during the evening commute.

Newfoundland was under multiple blowing snow advisories while a Wreckhouse wind warning was in effect for the extreme southwestern tip of the province, with gusts expected to reach 100 km/h overnight.

Linda Libby, a meteorologist with the federal forecasting service, said the weather will be messy and create tricky travel conditions.

She said the duration of the freezing rain, which could hover over parts of the Maritimes for several hours, may cause some infrastructure damage.

In a tweet, NB Power said it would monitor the weather as it progresses in New Brunswick, with crews ready to respond if power outages happen.

In Halifax, where snow and ice pellets are expected to change over to rain as temperatures rise above freezing overnight, the municipality said it would enforce the overnight winter parking ban "to allow crews to properly clear the streets and sidewalks."

With temperatures across much of the East Coast reaching the mid-single digits Saturday, Libby said shovels may not be necessary except in northern New Brunswick, Newfoundland and areas with higher elevation.

"It's not the worst storm we'll have all winter but it's certainly one that will be tricky," she said.