"Freddie" wrote in message ...
And of course it is all specific to the hemisphere that you are observing
in. In the southern hemisphere, frictional retardation causes backing of
the flow with height in the lower boundary layer; and in the southern
hemisphere winds veering with height indicate cold advection, and winds
backing with height indicate warm advection.

I bet it's as clear as mud now! ;-)

It's as clear as an unmuddied lake, Fred.

http://www.imdb.com/title/tt0066921/...item=qt0424854
;-)