A fog advisory has been issued for the Lower Mainland for Monday.
Environment Canada is warning that there is near-zero visibility Monday morning (Jan. 19), as fog continues over several areas, including White Rock, Surrey, Langley, Delta, Richmond, Maple Ridge and Coquitlam.
The fog, caused by a ridge of high pressure over B.C. that is trapping moisture near the surface, is expected to last now through Tuesday afternoon (Jan. 20).
“While visibility may improve in the afternoons, fog is expected to redevelop each night,” the Environment Canada yellow advisory noted.
The ridge is forecast to weaken, and incoming weather systems will flush out the fog by mid week, the federal agency said, and cautioned drivers to be alert and to slow down, and to be prepared for areas of near-zero visibility.