CALGARY — As Calgary digs out from 35 cm of snow Air Canada and WestJet have issued advisories for passengers booked to fly in or out of the city today.

A warming centre was set up for the hundreds of people stranded for up to 13 hours yesterday by the bad weather on the Trans-Canada Highway west of Calgary.

Roads and highways in and around the city Tuesday were covered in heavy, wet snow, and more fell overnight.

Parts of Calgary reported snowfall amounts of up to 40 centimetres in a 12-hour period with similar amounts in the mountain parks and other areas of southern Alberta.

People were being urged to stay home and cautioned to keep off of roads.

Canmore RCMP say the Trans-Canada Highway west of Calgary was closed Tuesday in both directions near Dead Man’s Flats.

The westbound lanes opened around 6:20 a.m. but the eastbound lanes remain closed.

Vehicles were in the ditches and highway crews and tow trucks were trying to clear them out.

Part of the main highway between Calgary and Edmonton was also closed overnight due to a multi-vehicle fatal crash involving more than 20 vehicles.

In Calgary, 59 sanders and 22 graders hit the streets to start clearing the major roadways after the heavy snowfall.

Officials said about 74 operators and 40 pieces of equipment were added to Calgary’s existing resources from Edmonton, Red Deer, Okotoks and Medicine Hat.

They asked motorists to use caution on the roads or even stay home until this afternoon if possible.

Both Air Canada and WestJet are waiving change fees for passengers booked on flights scheduled in and out of Calgary on Oct. 3 and looking to change their travel plans because of the snowstorm.

With files from The Canadian Press