I'm not sure that that sort of stuff was comprehensively written down.
And it has more to do with just looking at the sky. It involves an intimate understanding of the environment and generations of acute observation and reasoning.
Last year I was out in the bush with the BCUK expedition and our guide said some interesting things.
At about 8am he looked up at a small patch of sky through a gap in the canopy and said "If there is wind it will rain by 2, if not it will rain at 4pm".
Needless to say I was intrigued and waited. At 4 pm nothing happened, but at about 4.10 it did rain!
One late afternoon, it was quite overcast, but he said " It will not rain to night".
I asked him why.
"The bird told me so", he replied. It didn't rain.
On later questioning, it seems that that was a mating call. I suppose that the bird will not start making preparations for mating rituals if the weather is going to cool his lady's ardour.
That kind of knowledge I would dearly love to have but it is closed to me.
Edit: By chance the Times has an article on something like this
Last edited by BOD; 28-05-2008 at 06:43.
Reason: knew datuh
"An eye for an eye only makes the whole world blind" M. K. Gandhi