When it gets windy the wind can cause vibrtions of my 8" Dobsonian or my 80mm short tube refractor. Is that enough to send me in? Depends. If it is an occasional gust, no. If it is constantly blowning the scope around then I have had enough.
I probably would not head out in more than 10 mph breeze as I just don't find it comfortable this time of year in New York. In the hot summer it might be very welcome.
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