British Columbia, flooding
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The flooding is the result of a powerful atmospheric river, an ocean-crossing weather phenomenon originating in the tropics or subtropics, commonly seen on the West Coast. Since Tuesday, between 90 and 150 millimetres of rain fell over southern B.C., officials said.
Heavy rains drenching the Pacific Northwest triggered flooding on Thursday across much of the Pacific Northwest from Oregon north through Washington state and into British Columbia, closing dozens of roads and prompting widespread evacuations.
Heavy rainfall has caused major issues in the Fraser Valley and resulted in the partial closures of two major highways. As of 8 p.m. on Wednesday, Highway 1 has been closed to eastbound traffic between Bridal Falls and Hope, while Highway 7 has been shut down between Agassiz and Hope due to a rock slide.
Flooding in B.C.'s Fraser Valley, caused by overflow from the Nooksack River in Washington state, is expected to reach its peak Friday, as highways and some schools remain closed and residents assess the damage.
Several days of heavy rain have swollen a number of rivers causing major flooding in parts of Canada and the US.
Thousands in BC under flood alert as more rain is forecasted after days of atmospheric rivers hammer the south coast and interior
Floodwaters recede in Abbotsford, but Highway 1 remains closed; experts warn more rain, landslides and repeated flooding risks due to climate change.
With his city facing a second major flood in four years, the mayor of Abbotsford, B.C., rebuked his provincial and federal counterparts on Friday for failing to heed the lessons of a devastating 2021 flood and provide funding for dikes, pumps and other mitigation projects.
Since the disaster four years ago, Semá:th First Nation, Leq’a-mel First Nation, Máthxwi First Nation, the cities of Abbotsford and Chilliwack and the province signed a collaborative framework for flood mitigation in the Sumas River watershed.
Flooding in the Lower Mainland as well as part of the Southern Interior continues to be a dynamic and evolving situation.