A low-pressure system sweeping into B.C. this weekend will tap into a moisture-laden Category 4 atmospheric river to wring out extensive rainfall across portions of the province.

An atmospheric river has drenched coastal British Columbia, triggering localized flooding Saturday as voters headed to the polls for the provincial election.

An atmospheric river battering B.C. brought flooding, road closures, power outages and event cancellations in parts of the province on Saturday, with officials saying transportation challenges would likely be exacerbated by the number of people heading out to vote.

An atmospheric river washing over British Columbia this weekend has triggered flooding in some communities across the South Coast. Persistent waves of heavy rainfall, fuelled by a Category 4 atmospheric river, have filled gauges and waterways alike throughout the region.

VANCOUVER — Environment Canada has issued several rainfall warnings for British Columbia, covering much of Vancouver Island and the coastal regions as the first atmospheric river of the season approaches.