This is the same high pressure system that just devastated Oklahoma and has now moved west. You Kalifornians need to make sure your generators are in good working order and you have plenty of fuel. You will need a bug out plan in case you have to evacuate due to wildfires. Make sure you have a bug out bag containing your important papers and several changes of clothing. And don’t trust your safe to protect your guns from fire. Oh, I forgot, Kalifornians aren’t permitted to own firearms.
I no longer have firearms, lost them all in a tragic wildfire that burned our house down some years back.
But thanks for the other advice. We try to stay prepared...but no thanks to the rats in Sacramento, AB32, CARB and Schwarsenkennedy, we've had a lot of our power supplies cut off because they're "dirty and non-renewable".