Well said in your last post. I would add that some days the clouds can be very helpful in reading the wind. On those days when you have patchy dark clouds with defined edges and bright sunshine in between, expect major wind gusts/shifts at the edges of those clouds. I'm talking about those days on water when its 4 gusting to 15. If you don't anticipate well, your boat turns into a pendulum. I don't know if it applies in this case, but on certain days I have found watching the clouds helpful.