Here is a timeline of Portland’s coming winter weather. Wednesday night: The first hints of winter weather could come overnight, according to the National Weather Service in Portland. There’s a 30% chance of snow starting after 4 a.m., when the low dips to 26 degrees.

School was already canceled for most kids in the area when snow showed up on traffic cameras in Woodburn and Wilsonville on Thursday morning. In comments on a National Weather Service in Portland post on Facebook,

Another winter storm rolled through the state on Thursday, bringing snow, then sleet and rain, to Portland. The result was a heavy blanket of wet snow and slush, slouching off parked cars and caking sidewalks and streets with a thickness that frustrated some plow drivers.

About an inch of snow officially fell Thursday on Portland, causing crashes, canceling school, shutting government offices and briefly cutting electricity to thousands. Potentially more dangerous weather was expected to arrive Thursday night,