Northwest residents just digging out from a major snow storm should brace for frigid conditions.
Environment Canada has issued an Arctic outflow warning for coastal and inland sections of both the North and Central Coasts.
Forecasters say an arctic ridge of high pressure will bring strong outflow winds, driving arctic air through mainland valleys and inlets.
Temperatures will drop significantly Saturday night with wind chill values falling to at least minus 20 degrees.
Environment Canada says frostbite and hypothermia can occur within minutes if adequate precautions are not taken when outdoors.
The deep freeze is expected to last well into next week.
