Environment Canada has issued a special weather statement for Greater Victoria and South Island Sunday.
Heavy wind gusts are expected on Monday.
According to the weather agency, the abrupt change in weather conditions across the prairies this weekend will cause a strong ridge of high pressure that will build over northern BC and spread southwards tonight.
Rising pressures will drive strong outflow winds through coastal valleys on Labour Day Monday.
Winds will likely be at their peak during the day, but could potentially remain gusty through Monday night.
The plume of strong, northeasterlies winds will cross the Strait of Georgia and impact the Gulf Islands, Greater Victoria, Port Renfrew, Duncan, and Lake Cowichan by Monday afternoon.
Wind gusts upwards of 70 km/h are possible, and this could lead to an increased risk of damage from tree limb breakage.
