It changes by the hour. the wind can shift 30 degrees in 10 minutes and a totally different area is under smoke. All you can do is follow your planned route, check local radio stations for current conditions and modify your route appropriately.
It's a messy time in the western states at the moment. We're glad to be far enough west not to have to worry. Having a bay of several square miles to our south, that is over 600' deep about 2 miles from our driveway, with a water temperature around 50F year round, is very reassuring. Poor for swimming but good for fire protection.
Frank Damp -Anacortes, WA,(DW- Eileen)
ex-pat Brits (1968) and now ex-RVers, as of 08 Dec 14.