A “once in a decade” bomb cyclone is sweeping through the northwest US and parts of Canada late Tuesday –– leaving at least one person dead and hundreds of thousands without power across Washington state,

Hundreds of thousands of people are in the dark thanks to high winds from the bomb cyclone hitting Western Washington Tuesday night.

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.