The province's river forecast centre has issued a high streamflow advisory for Howe Sound, including the Stawamus River and surrounding creeks and tributaries.
"An atmospheric river storm event is expected to impact the south coast of British Columbia Sunday and Monday," the advisory reads. "Rainfall amounts are forecast between 50 to 200 mm."
The centre says Snowmelt from mid-elevation terrain may add to runoff for this event.
In watersheds with higher terrain, including the Squamish River and Lillooet River, snow may be the dominant form of precipitation, and river responses are expected to be lower than more coastal areas.
The District of Squamish is asking residents to use extra caution around all local waterways and tributaries, and keep well back from the river banks - especially with children and pets. A rapid rise of water levels can be expected.
