The warning comes as a Pacific low-pressure system combined with cold outflow winds will produce snow over the region, Environment Canada said in a statement.
B.C.'s minister of transportation said crews are ready for the upcoming snow and rain forecast to arrive on the South Coast Tuesday night and into Wednesday.
Vancouver Island has seen 15 to 20 cm of snowfall so far with heavy snow expected to taper off later this afternoon, mixing with rain over Greater Victoria.