A bomb cyclone slammed the Pacific Northwest and Canada's British Columbia on Tuesday night into Wednesday morning, killing at least two people and knocking out power to more than half-a-million homes and businesses.

Details: Known as the "Chiclone" or "Great Lakes Cyclone," this storm set the record for the lowest non-tropical pressure in the continental U.S. It brought widespread damaging winds and heavy rain across the Midwest, disrupting air travel and causing significant power outages.