Tens of thousands of homes in Washington state lost power Tuesday and downed wires or trees locked some highways as Northern California and the Pacific Northwest started feeling the effects of a powerful atmospheric river event,

A powerful winter storm brewing near the Pacific Northwest known as a bomb cyclone is dragging an atmospheric river.

On Sunday, the National Weather Service issued a hydrologic outlook for much of Northwest Oregon and Southwest Washington.

A significant weather change is expected on Wednesday as temperatures dip closer to November norms. However, this shift is minor compared to the massive storm hitting the Pacific Northwest.

The Pacific Northwest is preparing for a series of impactful weather systems this week, bringing powerful winds, heavy rainfall, and significant snowfall. This weather event includes a bomb cyclone and an atmospheric river,

A powerful winter storm brewing near the Pacific Northwest known as a bomb cyclone is dragging an atmospheric river.

A powerful storm is bearing down on the West Coast and bringing with it a scary-sounding weather term - bomb cyclone. Bomb cyclone is a term used by weather enthusiasts to describe a process that meteorologists usually call bombogenesis.

Local officials across the West Coast are bracing for flash floods, power outages, and possible blizzards at high altitudes after announcing heavy rain from Nov. 19 to Nov. 22. Powerful winds also raise concerns about the increased risk of wildfires.

Starting Tuesday, the Pacific Northwest could get at least 6 inches of rain, with 20-plus inches possible in the mountains. Strong winds could cause power outages.

Over a month’s worth of rain, hurricane-force wind gusts and feet of mountain snow are coming to parts of the Pacific Northwest and Northern California.