I know in the Midwest we had sirens for the tornadoes. I don't think we have anything like that in Seattle. It probably wouldn't wake me any way. My cell phone is off at night so reverse 911 won't work. I do have a radio that will go off with a weather alert alarm that is VERY loud. I should see if it is tied into fires.
Good question which I asked my relative in Sonoma. She said that the wind was keeping her wide awake anyway but that her and the husband's phones kept blaring alerts. BTW, so far they and their home are OK. Many others said that police and firefighters came door to door urging folks to leave immediately.