Tim Chuey Weather | Eugene Daily News
An Upper Level Low ("U" shape) is moving eastward and will weaken the moisture flow to the Pacific Northwest to be replaced by a High Pressure Ridge ("Arch" shape). The graphics for days 1-3 show the frontal system, show no frontal systems approaching the Pacific Northwest. The graphics for days 3-7 Saturday through next Wednesday show a quiet weather pattern with a frontal system lingering offshore next Wednesday.