Storm surge threat, higher tides trigger coastal flooding alert for B.C.'s South Coast
CBC
A coastal flooding alert is in place this weekend for B.C.’s South Coast, including Metro Vancouver and parts of southern Vancouver Island.
Environment Canada issued the alert Thursday, stating abnormal high tides combined with low pressure may produce minor to moderate coastal flooding.
The coastal water levels are forecasted to be the highest in Vancouver in the last four years, according to the City of Vancouver.
Environment Canada said the South Coast is “entering a period of high astronomical tides” as the Earth comes to its closest point to the Sun (the “perihelion”) at the same time as a low pressure system is crossing the region.
“This falling atmospheric pressure will help further elevate coastal water levels beyond predicted tides, thus increasing the risk of coastal flooding.”
The agency expects the highest risk of flooding on Sunday, though noted the exact timing of the low pressure centre remains uncertain.
There is a risk of “locally significant flooding,” and roads and walkways may be difficult to navigate due to flooding or debris, according to the Environment Canada.
The City of Vancouver said shorelines along the Fraser River, the Burrard Inlet including English Bay and some adjacent low-lying areas could be affected, according to a bulletin Friday.
It said water levels are expected to be at their highest on Sunday at around 7:30 a.m. PT.
Neighbourhoods including Southlands, the South Vancouver Industrial Area and Locarno Beach will be at an elevated flood risk.
Vancouver's Seawall remains open.
Crews will inspect tide gates and use a drone to assess the condition of the Southlands shoreline dike, according to the bulletin.
The city says extra shelter spaces will be open due to the heavy rainfall and colder temperatures.
The city recommends residents and businesses in low-lying areas to keep watch for heavy rainfall and pooling water, and asks residents to avoid impacted shorelines.
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