Hi Michael,
Nice article :) We had a similar experience in June this year in Mt.Moffat National
Park with overnight thunderstorms and heavy rain causing us some problems. We managed to get out of the
park but it was heavy going, with rangers saying they were going to close the
park if more rain came that afternoon.
Hope you get back to Expedition as it is really nice. We did a trip involving Cania Gorge, Expedition,
Carnarvon Gorge and Mt.Moffat. Ran out of time for Salvator Rosa, though hope to get back there at some point and reading this makes me want to get back up there sooner rather than later :) Expedition and Mt.Moffat were fantastic and
well worth the trip if you get the chance to get back.
Not sure whether I can upload a URL here but my wife put up some info/photos of our trip:
http://missmiffyqld.blogspot.com.au/2014/06/queensland-is-big-really-big.html (see Expedition and Mt.Moffat sections at bottom in particular)
Regards,
Russell