PORTLAND, Ore. (KOIN) – We start the new week with either a mix of sun and clouds or sun and wildfire smoke. Depending on where you’re at, you will experience one or the other, potentially both.

Wildfires generate vast plumes of smoke, which can reach the humid upper atmosphere, cool down and develop into clouds that can remain there for months, warming the air, drying out the earth and ...

There's a reason as to why the sky in Western New York looked milky over the weekend. Smoke from wildfires thousands of miles away clouded much of the area. The smoke billowed up thousands of feet ...