I'm reading it now. Pretty dry, and I think more technical than necessary. You can get the gist of it from looking up typhoons and jet streams on wikipedia.
I got it through an interlibrary loan. I don't belong to the local military college, but they loaned it to my library who loaned it to me. Ask your local library if they can do something like that and get it from a university or something. I'd be a little disappointed if I spent $90 on it.