The River Forecast Centre has issued a High Streamflow Advisory for the South Coast including for Sea to Sky region, Sunshine Coast, Howe Sound, and North Shore.
The River Forecast Centre is maintaining a Flood Warning for Sumas River including Sumas Prairie and surrounding area.
Rivers are expected to see rises on Thursday in response to rainfall, with the potential for highest flows (2-year to 5-year) expected around the Sunshine Coast, Howe Sound and North Shore corridor.
The first of the weather systems is expected to make landfall on Wednesday, starting on the North Coast and Central Coast, and sliding southward into Thursday.
This storm is expected to bring heavy rainfall, with rainfall totals in the 40-70 mm range over the Fraser Valley and 50-80 mm over the North Shore Mountains, and higher amounts possible over higher terrain.
Subsequent atmospheric river events are forecast on the weekend, starting up again later on Saturday. Additional storms are expected early next week.
There is still considerable uncertainty over the locations and severity rainfall of the weekend and next week storm cycles.