I have a not so good feeling about this. Also, if we get some localized heavy rain beforehand with thunderstorms that will not help. Most models have an inch or more just from the front before the main show. The orientation of the flow between the possibly major hurricane and strong HP to the NE will really bring the goods to the upslose areas. If it tracks as currently depicted by most models, most places along the escarpment will have no problem reaching 10" rather quickly. River levels are still below average most places so that could be the saving grace.
But then again this could turn out to be more of a flash flooding scenario where most of the heaviest rains falls in 24 hours or less. Fascinating week of weather coming up.