Fog advisory in effect for Toronto, most of GTA

A fog advisory is in effect for Toronto and most of the GTA.

Environment Canada says motorists can expect near-zero visibility across most of southern Ontario and as far east as Belleville and up to Barrie and Gravenhurst.

“Visibility may be significantly and suddenly reduced to near zero,” according to the national weather service.

The fog is expected to dissipate later this morning.