Prolonged atmospheric river brings Flood Watch and high avalanche danger to British Columbia as some areas face up to 400 mm (15.7 inches) of rain
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March 17, 2026
A prolonged atmospheric river is affecting British Columbia this week, with Flood Watch, multiple rainfall warnings, and Special Weather Statements in effect across parts of the province. Some coastal areas could receive up to 400 mm (15.7 inches) of rain, while heavy rain on existing snowpack is increasing the risk of flooding, washouts, landslides and dangerous avalanche conditions.
Source
Discussion in the ATmosphere