The best chances for lowland snow accumulations will be from Snohomish County northward to the Canadian border and to the west.

Look at the difference between models with low resolution compared to those that are higher resolution. The American Model, known colloquially as "The GFS" (the acronym stands for Global Forecast System), is run on low resolution as an extended forecast going over two weeks into the future.

Snow in the lowlands of Western Washington is looking more likely by Saturday night and into next week as unseasonably cold temperatures continue throughout the region. Forecast models are showing a 50% chance of at least 1 inch of snow starting Saturday or early Sunday, the National Weather Service said in an emailed briefing Monday afternoon.