Northwest heat wave moves inland

Avista Utilities imposed rolling blackouts in Spokane, Wash., in preparation for a record-breaking high of 110 degrees Fahrenheit on Tuesday. The heat wave that shattered all-time records in Seattle and Portland, Ore., is moving through the central and eastern parts of both states, as well as northern Idaho and northwestern Montana.

How hot is it? Schools and businesses in Oregon and Washington closed on Monday to keep people out of overheated buildings, including community pools. Power cables melted and electricity demand spiked in Portland, shutting down some public transportation. High temperatures damaged the pavement in some areas. In Seattle, the pavement buckled on a highway, and workers hosed drawbridges twice a day to keep the steel from expanding. The size of a wildfire in Northern California has topped 13,000 acres.

Dig deeper: Find the latest heat wave updates at the National Weather Service.