Residents in parts of southwestern British Columbia are being warned to prepare for more heavy rainfall as cleanup efforts continue following recent flooding in the Fraser Valley.

Environment Canada says up to 70 millimetres of rain could fall across areas including Metro Vancouver and the Fraser Valley through Wednesday morning. The forecast comes as floodwaters linked to the Nooksack River in Washington state begin to recede, allowing cleanup operations to start earlier this week in several low-lying Fraser Valley communities.

Provincial officials say the flood threat is not over. B.C. Emergency Management Minister Kelly Greene warned that ongoing rainfall along the south coast is increasing the risk of flooding and landslides, particularly on Metro Vancouver’s North Shore. She urged residents to stay away from riverbanks and waterways, noting that high water levels can leave banks unstable and dangerous.

The province has also reported impacts from strong winds associated with the storm system. BC Hydro said roughly 10,400 customers across British Columbia remained without power as of Tuesday morning, with crews working to restore service as conditions allow.

Emergency officials continue to monitor river levels and are asking residents to follow local advisories, especially in areas that have already experienced flooding. Southwestern B.C. has faced repeated high-water events in recent years, underscoring ongoing concerns about extreme weather and flood preparedness in the region.