PG&E says they've reduced the number of counties that could see power shutoffs in the coming days, but tens of thousands could still be in the dark as critical fire danger weather moves into Northern and Central California.

Warmer winds from the Great Basin — often called Diablo winds — are now the primary concern for meteorologists as most of Northern California falls under a National Weather Service red flag warning beginning at 11 p.m. Thursday and lasting through 5 p.m. Saturday.