Environment Canada calls fog advisory in Calgary due to near-zero visibility

Only the tops of the tallest buildings in Calgary's downtown core can be seen from Broadcast Hill, where CTV Calgary is situated in the southwest, on Dec. 21, 2019.

Calgary — Although many people found it difficult to see as they make their way through Calgary streets, one thing was clear: fog was a big problem Saturday.

Environment Canada issued the advisory just before 1:30 p.m. because of near-zero visibility in a number of regions in southern Alberta.

They include:

In the bulletin, the agency says areas of dense fog are expected throughout those regions into the evening hours.

Once it reaches that point in the day, drivers will have a new problem to deal with – snowfall.

It won't be much, only about two centimetres or so, but the flurries will continue into Sunday.

Environment Canada said fog advisories are called when near-zero visibilities are reported. It says drivers should remember to turn on their headlights so that others can see them on the road and make sure they maintain a safe distance from others.

Police advise against travelling Highway 1, as dump of snow expected

Other areas of the province, especially west of Calgary, are still under a snowfall warning that is expected to dump as much as 80 cm in some areas.

Banff National Park, Jasper National Park and Kananaskis - Canmore are the regions included in that part of Environment Canada's advisory.

At 7:20 p.m., Lake Louise RCMP issued a warning that travel on Highway 1 was not recommended due to heavy snowfall.

"Travel has become difficult. Numerous vehicles are reported to be stuck. Travel through the town site and up to Chateau Lake Louise is not advised," police said.

You can check on the current forecast on the CTV Calgary website or download the CTV Calgary Weather App for up-to-date weather information.