...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST SATURDAY... ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...For the Air Stagnation Advisory, light winds and limited air movement will lead to a period of stagnant air conditions. This scenario could result in the build up of air pollutants over time. For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. * WHERE...South Willamette Valley. * WHEN...For the Air Stagnation Advisory, until 4 AM PST Saturday. For the Dense Fog Advisory, until 11 AM PST this morning. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Low visibility could make driving conditions hazardous. With temperatures at or just below freezing, fog droplets may freeze on contact with surfaces, with slick spots on roadways possible early Friday morning. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down and leave plenty of ...
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