Environment sa国际传媒 issued a heavy rainfall warning for the west coast of Vancouver Island on Friday.
The agency says 100 to 120 millimetres of rain could fall between early Friday and sometime after midnight.
The warning, which includes the communities of Tofino and Zeballos, includes the risk of flash floods, water pooling on roads and localized flooding if drains are blocked.
“A robust and rain laden frontal system will slide down the sa国际传媒 coast,” said the warning. “Rain, heavy at times, will begin through this morning. The heaviest rain will ease off after midnight as the frontal system passes through.”
Drivers are being warned the downpours could cause poor visibility on highways, and cause washouts near rivers, creeks and culverts.