Environment Canada has toned down a forecast that initially warned of an "incredible series of storms" heading for B.C.’s southern coast.
The weather agency said a rainfall warning is still in effect for the northern sections of Metro Vancouver, mainly on the North Shore Mountains, which can expect up to 50 millimetres of rain. The downpour is expected to ease off around midday Tuesday.
Heavy rain could still cause flash flooding and pooling water on roads, and residents are warned to watch for washouts near rivers, creeks and culverts.
Elsewhere on the southern B.C. coast, heavy winds of up to 70 kilometres an hour are expected, with gusts reaching 90 kilometres an hour. Wind alerts are in effect for the Sunshine Coast, the central coast, and much of Vancouver Island.
Environment Canada says the harsh weather is due to an intense jet stream ushering in warm, moist air from the South Pacific Ocean.
But the harsh weather in B.C. will become downright pleasant by the time it arrives in the Prairies.
Edmonton and Winnipeg can expect temperatures to climb well above their seasonal norms this week.
The temperature in Edmonton will rise to as high as 7 degrees Celsius on Tuesday and is expected to reach similar highs on Wednesday and Thursday. It will then drop back to freezing level on Friday.
The warm air will sweep through Winnipeg from Thursday to Saturday, bringing mild, above-freezing temperatures with it.
Winnipeg's average high at this time of year is minus-9 degrees Celsius, but the mercury could climb as high as a record-setting 6 degrees Celsius by Friday.
With files from CTV Vancouver
