Sorry. I hope it ends well.
Once you are packed and ready, I would recommend getting everything loose or flammable at least 50' away from your house, and to the extent you can, inside the house move things away from windows (like paper and curtains). If you have the water, hose down the perimeter of the house, and the roof.
For the last fire, we didn't have great escape routes, as in one narrow one, so when we got that notice, we took care of the animals, turned on the sprinklers at the house perimeter (I had them on a timer, 15 minutes on, 15 off, as I wasn't sure when the power would be cut and when the water tanks would empty), and left. Normally we have three routes to choose from.
I have seen those "escaping through flames" videos, along with the cars on the side of the road whose plastic air intakes melted, or whose engines died from overheated air. That is as close as I want to get.
All the best,
Peter