Multiple fires are burning on the west side of the Sierra with the Valley, Butte, and Rough Fires being the largest, and producing the majority of the smoke we are currently seeing in the Sierra and western NV
The Butte fire is located South of Highway 88, East of Highway 49, North of Highway 4
Southwest to west winds will be increasing the next several days, which will transport additional smoke from these fires into the region, likely worsening conditions. Check airnow.gov for the latest air quality information.
Yubanet.com provides detailed fire updates