Rare white Christmas in Seattle, Portland as 'thundersnow' hits Boston

People around the U.S. are waking up to a white Christmas. 
Seattle and Portland — two cities that aren't exactly known for heavy snowfall this time of year — are both seeing a fair bit of snow on Monday. 
Large swaths of the Midwest and Northeast also woke up to plenty of the white stuff coating lawns, trees, and cars. 
SEE ALSO: People are losing their minds over historic Southern snowstorm
And that's not all. 
Some lucky Boston residents awake early enough on C