just as a storm has a place where winds change to still-and then go back on full strenght, i have noticed that winds sometimes slow down for a while and then return. sometimes this happens when winds change direction. as i fly early in the morning, i am always looking for this to happen, even in windy season. it may be for only 1 hour, or even 2, but that is enough for me to test or just enjoy a quick flight or 2.
i watch at the channels of the weather, and take a chance. most of the time it works. even if not, it always helps me by getting ready and checking everything and enjoying the trip to and back.