when all the kite surfers have packed up and gone home and the only people on the beach are sailboarders......
You know it was windy when...
you wake up the next day and sit up in bed, only to realise that you can't actually sit up in bed because your muscles no longer function as they had before.
you know it's damned windy when you look in the garage and see an old 2mtr trainer kite and think hey that will do it and you weigh in over 100kgs[}:)]
yeah and forgot the fact that you hooked up 60mtr lines which i actually tried and works awesome in high wind - great for skimboadin.
You're standing next to ya mates and ya can't hear a word they're saying as the wind howls in ya ears like a hurricane.
When you weigh over 90Kgs, but you're blowing up a 7m SB (you bought for this very reason) ready to jump on your 128 as everyone else is packing up because they can't hold an edge. 
When the exam period gets kickin and you start wonder if its just worth repeating a couple of units and going for a sesh instead of studying
When as soon as you launch the trainer your arms get pulled out of their sockets and you snap the lines.
When you've figured a way to hook the trainer up to your harness and then you start thinking of how you can de-power it.
you know it's gunna be on the whole time your away visiting the inlaws for chrissy in freezing Pommy Land.
When you go out into the sea and come back to find that your kite pump and bag have been buried by sand and difficult to find... happened a few times now 
when my tree on the top of the hill is starting to sway. thats a very good indicator.
When you wake up "Sick" and so unfortunately can't make it to school, but manage to bus it down to the beach for an awsome sesh!!!!
when you whip out a McDonald's tray to ride on 'cause your 120 twintip is too big!
When...
you do a boost and can clear Woodman's outcrop of rocks without even trying.
