Temperatures smash records in US west as brutal heatwave continues

Records broken in Sacramento and Reno, while California close to ordering rolling blackouts to ease strain on power grid

A brutal heatwave enveloping the US west smashed records on Tuesday, as high temperatures and historic energy use strained California's grid to the brink of its capacity and spurred fire behavior across the state.

Western states are struggling through one of the hottest and longest September heatwaves on record.