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,

Note: The National Weather Service (NWS) reported that its radar is currently down over the Portland metro area, so the data seen on the interactive radar below is from before 6 a.m. Thursday. We'll update this article once the NWS reports that its radar service has been restored.

Snow and freezing rain potential begins on Thursday as a low system barrels into the west coast. Showers look to arrive from south to north, up the valley, in the afternoon on Thursday. It is at this point that areas around the Portland & Vancouver metro areas could see light snow showers beginning.

A snow storm has caused chaos on an Oregon highway, with up to 30 vehicles involved in a large pileup. Several people were injured and four people were taken to a local hospital with minor injuries. An SUV involved in the accident caught on fire,

Update: Storm Tracker 2 Meteorologist Rhonda Shelby says a back edge to the first band of precipitation is just about to move through the metro area.1