People in Portland and also Seattle aren't used to getting more than about 1 inch of snow at a time. So, though ice can be a problem snow by itself usually isn't in these places

begin quote from Portland national weather service

 While it may not sound like a big deal to those in the Midwest, the last time we saw 1 or more inches of snow here was on Feb 10th, 2019," tweeted the Portland National Weather Service office.