Parts of Nova Scotia are under weather warnings from Environment Canada as a nor'easter powers through the province, causing travel woes.

Ferries travelling to Newfoundland from North Sydney have been cancelled. The ferries headed from P.E.I. to Nova Scotia have also been cancelled.

There were many cancellations at the Halifax airport for early in the day, with delays and cancellations persisting into the afternoon.

Environment Canada's warnings are calling for anywhere from five to 30 more centimetres of snow, depending on the location in the province.

According to some preliminary snowfall amounts from Environment Canada, as of 1 p.m. AT, the Halifax area had received between 18 and 23 centimetres of snow, while Greenwood, N.S., had 13 centimetres.

The heaviest snowfalls predicted moving forward are for Inverness and Victoria counties in Cape Breton, with 15 to 30 centimetres expected. The weather agency says that while the snow will change to rain Saturday morning, it will turn back into snow this afternoon as strong northeastern winds develop and temperatures drop. The snow is expected to keep falling until Sunday afternoon.

Environment Canada is calling for five more centimetres of snow in parts of Colchester, Cumberland and Hants counties, with snow expected to fall until early this evening.

In Antigonish and Pictou counties, and Colchester County-Truro and south, a snowfall warning is in place. Environment Canada did not specify how much more snow was expected.

Halifax Regional Municipality announced Saturday it will enforce its overnight winter parking ban from 1 a.m. to 6. a.m. Vehicles may be towed if they interfere with snow-clearing operations.

On Saturday afternoon, RCMP in New Brunswick warned that travel on Highway 2 between Moncton, N.B., and Nova Scotia was not recommended due to poor road conditions and low visibility.