Just days after the southern parts of British Columbia were destroyed by a historic atmospheric river, new flood warnings have been issued for parts of the north coast.
Environment Canada has issued a winter storm warning for inland areas of the north coast, including Stewart.
This region has received significant snowfall recently and up to 25 centimeters is expected on Friday evening and Saturday.
The threat of flooding arrives on Sunday as BC’s sixth atmospheric river of the season is expected to hit the region.
This powerful system will bring heavy rainfall and mild temperatures to Monday. This will cause freezing levels to rise to 1,000 meters while the region is plagued by rain.
Snow on the ground and lower mountains could melt quickly.
The term “snow eater” has been used to describe this type of scenario, and the resulting flooding can be rapid and devastating, as southern BC knows all too well now.
According to Environment Canada, the snow will “melt when the rain system arrives and the drainage systems may become blocked or overwhelmed.”
“Localized or perhaps widespread flooding may result. Landslides may occur,” the National Weather Agency added.
Meanwhile, a high-current warning has been issued for areas closer to the coast.
The BC River Forecast Center issued the guide for “the north coast including Haida Gwaii and areas around Prince Rupert, Kitimat, Hartley Bay, Kemano and the surrounding areas.”
According to Environment Canada, these areas could see 100-150 millimeters of rain over the weekend.
However, the BC River Forecast Center expects even more – 200-300 millimeters by Monday.
“Rivers are expected to rise rapidly overnight Saturday and even Sunday,” the center warns.
“Flooding is not expected at present, but forecasts and conditions may change rapidly.”
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