A fog blanketed Calgary and large portions of eastern and central Alberta Tuesday morning, including Red Deer, Medicine Hat, Lloydminster, Camrose, Drumheller, and the Edmonton area including Leduc and Fort Saskatchewan.
There was thick fog in Edmonton as well, but no advisory was issued for the city itself.
An advisory was issued for several areas as near-zero visibility from the fog is expected, increasing risks with travel in some locations, including along the QEII highway between Edmonton and Calgary, and the Trans-Canada Highway east of Calgary.
Fog affected areas around the Calgary International Airport and Edmonton International Airport. Spokesmen with both airports told Global News that the fog had no major impact on flights Tuesday morning.
Environment Canada issued the fog advisory Tuesday morning and said areas of dense fog will gradually dissipate Wednesday morning.