For the benefit of those who haven't been up to Cairns, this image that was taken
from a web cam at 3:15 pm today from the marina at Cairns looking east
across Trinity inlet demonstrates how the clouds can get hung up on the
surrounding mountains essentially forming its own microclimate.
In past years going up there, we have experienced quite a few times
that you can drive down from the Atherton Tablelands through heavy mist at
midday only to emerge at lower altitudes into a brilliant sunny day, over a distance
that is only a few km.
The Atherton Tablelands aren't littered with scattered remnant rainforest and waterfalls
without good reason.
With luck on the eclipse day, we will have nothing but blue skies.
But as a rule of thumb, if the weather is iffy, you might want to plan to be on one
side of the ranges or the other.
Cairns Marina web cam here -
http://www.cairnsinfo.com/webcam.php