SEATTLE (AP) - Forecasters say cold, dry weather with areas of freezing fog will continue to the middle of next week in Washington. The National Weather Service says a frontal system could arrive Tuesday night or Wednesday, returning rain to Western Washington and a chance of snow in Eastern Washington. A strong high pressure system over the Northwest is expected to last through the weekend, maintaining stagnant air conditions that could cause breathing problems for vulnerable people. MORE WEATHER DETAILS: KHQ.COM - A strong ridge of High pressure continues to dominate our forecast through the weekend and into next week. Areas of low clouds and fog are expected to plague NE Washington, the Columbia Basin and West Plains, and Air Stagnation will continue to be a concern, as much of Central & Eastern Washington, as well as North Idaho remain under an *Air Stagnation Advisory* through next Tuesday.
Friday: AM patchy dense fog, mainly cloudy afternoon. 28°/15