Environment Canada has issued a Coastal Flooding Warning for the eastern coastline of Haida Gwaii, from Rose Spit to Cumshewa Island, as a pair of strong frontal systems bring high winds, heavy waves, and elevated ocean water levels to the region.
The warning, issued early Wednesday morning, advises residents to prepare for storm surge and high tide conditions that could raise water levels up to 50 centimetres above the highest astronomical tide.
The first surge is expected today between 10 a.m. and 2 p.m., with another likely to occur Thursday between 11 a.m. and 3 p.m. Strong southeast winds will coincide with the high tides, increasing the risk of coastal flooding, wave action, and debris washing onto roads and shorelines.
“Elevated ocean water levels accompanied by significant winds and waves are expected, likely exceeding the highest astronomical tide,” the warning states.
Flooding and erosion are possible along vulnerable areas of the eastern coastline, including beaches, estuaries, and barrier islands. Roads, walkways, and low-lying properties may experience flooding or become obstructed by driftwood, rocks, and other debris.
Environment Canada says the first weather front is moving across Haida Gwaii today, followed closely by another system on Thursday afternoon. Both are expected to produce strong southeast winds, particularly along exposed coastal areas.
Residents are advised to use caution near the shoreline, secure loose items, and avoid driving or walking through flooded areas.
Coastal flooding warnings are issued when high water levels pose a threat to coastal regions due to tides, storm surge, or waves.
