National Weather Service
This sketch outlines the two giant fields of smoke covering vast tracts of Oregon, Washington, Idaho, Montana, Wyoming, Utah and Nevada. Oh, and British Columbia.
The National Weather Service station in Missoula, Mont., tweeted this photo of two smoke zones covering much of the Mountain West.
The southernmost zone covers all of Southern and Central Idaho, and will be familiar to folks in Boise for being responsible for post-apocalyptic-looking sunsets, hazy conditions and respiratory irritation. Similar smoky conditions from wildfires in Oregon and Southern Idaho are affecting areas in Oregon, Idaho, Montana, Wyoming, Utah and Nevada.
Fires contributing to this plume of respiratory nastiness include the Whiskey Complex
fire, which has burned more than 4,500 acres and has 300 firefighters scrambling to contain it.
To the north, a similarly imposing layer of haze is affecting Eastern Washington, Northeastern Oregon, the Idaho Panhandle, Montana and parts of Canada. One of the sources of that haze has destroyed an estimated 100 homes in Washington's Methow Valley, the Spokesman-Review reports