The Southwest Clean Air Agency and the Oregon Department of Environmental Quality have continued an Air Quality Advisory, which is in effect until 6 p.m. Thursday, Oct. 20.
The red shows areas where air quality has deteriorated.
A Smoke Air Quality Advisory remains in effect. Wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels at times through Thursday.
Improving air quality is expected Thursday night into the weekend, as weather fronts will bring west to southwest winds, and rain as early as Friday evening.
Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition.
Special Weather Statement
The National Weather Service has issued a Special Weather Statement for a significant change in the region’s weather by this weekend.
A change in the weather pattern is expected later this week. The mrainy season likely begins in earnest Friday or Saturday as the first in a series of Pacific frontal systems moves across the Pacific Northwest. This will bring an end to the extended unseasonably dry and hot weather.
A strong cold front will push into the region Friday into Saturday, bringing the first significant widespread rain to the region since June. Overall expected rainfall amounts will be adjusted between now and the event, but at this point 0.25 to 0.50 inch of rain is possible for the inland valleys, with 1 to 2 inches possible along the coast and across the higher terrain.
Afternoon high temperatures in the 70s on Thursday will begin to cool into the 60s on Friday, and then will have a difficult time getting out of the 50s over the weekend.
With the expected rainfall, roads may become slippery. Also any clogged drains or gutters could easily overfill. Consider checking outdoor drains, roof gutters, and other areas with poor drainage and clearing out the dead leaves and debris.