[Esther Ruth]

Oh yikes, idunno, there are a lot of great links that you could spend millions of hours on at that web site linked at top of this article. Look at this one that is from the bottom of article. Lots there.
http://www.hao.ucar.edu/

[HiTech RedNeck]

The proof of the pudding is in the predictions. For that one has to wait.

The sunspot cycle does seem to have more regularity than earth weather, but HOW much more is the crucial question. Would seem to me that an almost unimaginably hot ball of gases and plasma like the sun would be more like weather, in terms of chaos, than it is like billiards.