[pg&e california wildfire]Associated Press/Marcio Jose Sanchez * The utility company PG&E will shut off power to more than 800,000 customers in Northern California on Tuesday night, at approximately midnight, to reduce the risk of wildfires. * Dry, windy conditions are expected to last through midday Thursday, and the National Weather Service has warned of "extreme fire weather danger." * The risk has sparked concerns over whether California is sufficiently prepared for a blaze — particularly after last year's Camp Fire, which became the state's deadliest wildfire. * Visit Insider's homepage for more stories. A Northern California utility says it will shut off power to more than 800,000 customers in 34 counties to reduce the risk of wildfire amid dry, windy conditions. Pacific Gas and Electric says it expects to begin shutting down power in some areas starting just Tuesday night around midnight. SEE THE REST OF THE STORY AT BUSINESS INSIDERNOW WATCH: Nxivm leader Keith Raniere has been convicted. Here's what happened inside his sex-slave ring that recruited actresses and two billionaire heiresses. SEE ALSO: * Tens of thousands of goats are destroying an entire Greek island * A witness who testified in the murder trial of ex-Dallas cop Amber Guyger has been shot and killed * The man who was led on a rope by 2 white cops on horseback said he feels overcome with shame by videos of the incident