before the ignition of the sand fire, in the early morning hours of saturday, june 8, pg&e made efforts to mitigate wildfire risk in the yolo, napa, lake and solano county areas during a projected red flag warning by implementing the controversial practice of cutting power to selected portions of those areas. electricity was shut off for roughly 1,600 customers in parts napa, solano and yolo counties as an additional 27,000 customers in butte, yuba, nevada, el dorado and placer counties were cut off later that evening and into sunday morning, june 9.