With millions of people preparing to travel for the Thanksgiving holiday, two strong storm systems are forecast to bring high winds, heavy rain and snowfall to a large swath of the United States this week.

Besides a storm brewing over the Great Lakes, a "bomb cyclone" is also forming off the Northwest, promising widespread snow.

Thousands of people across western Washington were without power Tuesday night as a bomb cyclone brought strong winds to the region.

I​n northwest Washington, strong winds downed trees, striking homes and power lines and littering debris across roads. Almost 710,000 homeowners and businesses in the state were without power as of Wednesday morning,