Environment Canada is advising the public of a driving Alert for interior highways.
The alert, posted Sunday morning, said a slow moving frontal system expected to move through the Southwest Interior this afternoon and then across the Kootenays tonight should bring snowfall amounts in the 20 cm range.
"The storm will give significant snow to the highway (Kootenay and Paulson Summit) passes," Environment Canada Alert said. "Snow will begin falling late this afternoon and intensify this evening. Snowfall amounts approaching 20 cm are expected by early Monday morning."
- Coquihalla Summit: Light snow will become heavier late this afternoon and continue into this evening. The snow is expected to ease near midnight. Total snow amounts of 15 to 25 cm can be expected by early Monday morning.
- Rogers Pass: Intermittent flurries will intensify this afternoon. 10 cm can be expected during the afternoon with an additional 10 cm tonight.
The Alert said snow will taper off on Monday morning as the system moves into Alberta.
"Be prepared to adjust your driving with changing road conditions," the Alert said.
"Prepare for quickly changing and deteriorating travel conditions. Visibility may be suddenly reduced at times in heavy snow."
Weather in the mountains can change suddenly resulting in hazardous driving conditions.
ShiftIntoWinter.ca reminds drivers to know before you go. Adjust to winter driving behaviour and use winter tires and chains.
Road conditions are available at DriveBC.