(NEW YORK) — Atmospheric rivers have dumped more than 15 inches of rain on parts of Washington state in the last few days, sparking historic river flooding and submerging neighborhoods — and the threat is far from over.

Washington Gov. Bob Ferguson, who has declared a state of emergency, stressed that the flooding “is extremely unpredictable.”

Up to 100,000 people in Washington state could be ordered to evacuate.

On Friday morning, all residents of Burlington — a city about 70 miles north of Seattle — were ordered to evacuate, and members of the National Guard are going door-to-door to help people leave, according to Seattle ABC affiliate KOMO.

Multiple rivers are at major flood stage on Friday.

The Cedar River at Renton swelled to a new record height overnight, topping 18 feet, causi

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