A 33-year-old man died after driving into floodwaters near Seattle, becoming the first reported fatality from a week of heavy rain and flooding in the region.

Rescue crews found his car submerged in about six feet of water in Snohomish County, but lifesaving efforts failed.

Authorities warned that many residents underestimated the speed and danger of rising waters, with numerous rescues involving people stranded atop vehicles or in flooded homes.

Ongoing storms are expected to bring more heavy rain, snow, and high winds to the Pacific Northwest, prompting flash flood warnings and levee evacuations in King County, PBS has reported.

Officials evacuated thousands of residents, used helicopters and sandbagging efforts to mitigate flooding, and continue working to repair levees and restore safety.