Communities in the US West and Canada were under siege from raging wildfires on Friday, as a fast-moving blaze sparked by lightning sent people fleeing on fire-ringed roads in rural Idaho and a human-caused inferno forced evacuations in northern California. In eastern Oregon, a pilot was found dead in a small air tanker plane that crashed while fighting one of the many wildfires spreading across several Western states. More than 110 active fires covering 2,800 square miles (7,250 square kilometers) were burning in the US on Friday, according to the…