Pacific Gas and Electric Co. warned early on Oct. 14 that it may proactively shut off power in certain parts of northern California that are facing "extreme fire risk."

The utility subsidiary of PG&E Corp. said that it would be most likely to shut off power to certain areas in advance of a Sunday evening wind event that is forecast to last until the morning of Oct. 15. PG&E said it may turn off power in parts of Lake, Napa, Sonoma, Yuba, Butte, Sierra, Placer, Nevada, El Dorado, Amador, Plumas and Calaveras counties.

PG&E asked customers to identify whether their home or business is in a high fire-threat area, provide the utility with updated contact information, and create an emergency plan in case of fire. The utility said it will try to provide early warning to customers that may be in a threatened area, and provide updates until power is back to normal.