A nor'easter slammed into Nova Scotia on Saturday, bringing strong winds and heavy snowfall to parts of the province.

Environment Canada issued a winter storm warning for the region, predicting northeast winds up to 80 kilometres an hour and up to 30 centimetres of snowfall by evening.

The agency warned that the strong winds and blowing snow would cause near-zero visibility in some areas.

"Public Safety Canada encourages everyone to make an emergency plan and get an emergency kit with drinking water, food, medicine, a first-aid kit and a flashlight," the warning said.

The conditions also grounded flights in and out of the Halifax Stanfield International Airport, and forced bus cancellations on Cape Breton Island.

By noon on Saturday, the worst of the storm had passed over Halifax, leaving ten to 12 centimetres of snow in its wake, CTV Atlantic co-host and weather anchor Alyse Hand said.

Hand also said as much as 40 centimetres of snow could accumulate throughout the day and overnight in Gander, N.L., while freezing rain is expected to hit the eastern sections of the island.

"In the vicinity of Gander and Bonavista North, snow will change over to an extended period of freezing rain and ice pellets tonight before changing back to snow and blowing snow early Sunday morning," Environment Canada said in a warning.

The latest bout of nasty winter weather in Nova Scotia and Cape Breton is expected to slow by late afternoon or early evening Saturday.

The full list of Environment Canada weather warnings is available online.