Storm surges, coastal flooding possible in low lying Metro Vancouver areas

Environment and Climate Change Canada (ECCC) is warning that flooding is probable for low-lying areas near the ocean in southern B.C. close to high tide on Tuesday morning.

The two storm fronts that are hitting much of the Lower Mainland early this week are bringing high winds and heavy rainfall, which ECCC says could bring 60 mm to 110 mm of rain by Tuesday night.

The special weather statements are in effect for much of the Lower Mainland, including Vancouver, New Westminster, West Vancouver, North Vancouver, Surrey, Langley, Richmond, and Delta.

“These water levels can cause damage to coastal infrastructure in low-lying areas, especially at locations prone to impacts during similar events in the past. Swells and enhanced wave action carrying debris may cause damage to coastal infrastructure. East to southeast facing coastline may see larger waves and higher localized flooding,” ECCC said in its statement.

#KingTides and strong winds are expected today and tomorrow.

King Tides are predictable occurrences of unusually elevated tides. However, combined with strong winds, it may be dangerous near the water. Please use caution and stay safe out there! #CityofVancouver #ExtremeWeather pic.twitter.com/8d4fEwlr0c

— City of Vancouver (@CityofVancouver) December 26, 2022

The weather service says to be on the lookout for potential hazards such as localized flooding due to ice-clogged drains, water pooling on roads, high river levels, and the potential for debris inflows.

Squamish is also under the weather statement, with the service expecting that region to receive 110 mm.

“Heavy downpours can cause flash floods and water pooling on roads. If visibility is reduced while driving, turn on your lights and maintain a safe following distance. Avoid driving through water on roads. Even shallow, fast-moving water across a road can sweep a vehicle or a person away. Don’t approach washouts near rivers, creeks, and culverts. Keep children and pets away from creeks and river banks.”

The City of Delta says Monday’s high tide event did not bring flooding to its low-lying areas, however, it is handing notices to residents near Boundary Bay to advise them of storm surge risks.

It says sand and sandbags are available for residents at Seaview Road, 1A Avenue boat launch, 3rd Avenue beach access, and 16th Avenue beach access.

Storm Surge Update — Dec 26 11:00am
The high tide has passed today with no reported flooding issues. Notices to residents in Beach Grove & Boundary Bay are being delivered to advise of the storm surge event tomorrow, Dec 27, & to encourage residents to take precautions. (1/2) pic.twitter.com/jU9zPs0eAk

— City of Delta (@CityofDeltaBC) December 26, 2022

During a storm surge and atmospheric river event late last year, a barge became loose from its anchor in English Bay and ran aground next to the seawall at Sunset Beach in Vancouver’s West End.

Affectionately becoming known as “Barge on the Beach” or the “English Bay Barge,” it took the City of Vancouver more than a year to plan and deconstruct the barge which has now been recycled and disposed of.