He's got articles about it on his web site.

Like most things - I read it, take it in, and then watch as time goes by in this geological lab we live in..

Just a breif recall - I thinkit's based on the fact of some fault motion beforehand - with the release of trapped moisture, therefore clouds appear where they shouldn't.. I think that's the theory.. It may not be what this guy uses, but I think it is..

Canie