"Joe Hunt" wrote in message
...


Summer is the time when you see CBs at a greater distance due to their
larger height. Some CBs can touch 40,000ft in the height of summer in air
masses with high tropopauses. Conversely, in winter, CB tops in a northerly
can be as low as 8000ft. Think of Pythagoras' Theorem.


From this distance to the horizon calculator:

http://www.boatsafe.com/tools/horizon.htm

The very top of the 40,000ft cloud would be visible at a distance
of 269 miles.

Col
--
Bolton, Lancashire.
160m asl.
http://www.reddwarfer.btinternet.co.uk
http://www.reddwarfer.btinternet.co....rPictures.html