PORTLAND, Ore. (AP) — A wintry mix of snow, ice and rain continued Friday in much of the Northwest as ice was slow to thaw and new winter weather warnings were issued around the region. Seattleites woke up to rare winter powder Friday after an overnight weather system brought 1 to 3 inches of snow to the city and other parts of Washington state. Some schools canceled classes, while others including Seattle Public Schools delayed school start times. In Portland, forecasters expected a couple inches of snow to stick to the ground Thursday, followed by freezing rain, but while the forecast called for just rain eventually, temperatures were slow to warm above freezing. That prompted an extension of the freezing rain advisory through early Saturday.