It’s always good to have a plan and calling the local ranger station is always a good idea. As a wildland firefighter I would not go into the back country in the same region, as a major fire, until the wildfire risk went back down to medium or low. It’s not worth the risk. While I was In Texas last year a grass fire ignited near my engine from an ember from the BearCreek fire. The BearCreek fire was more than ten miles away. Point being wildfires are unpredictable. If you are contemplating the risk it’s time to go somewhere else.