I noticed yesterday that one of the mature cedars on my property has brown branches all the way to the top. It's not entirely brown, and it appears to be worse on the east side, which happens to be more exposed to the sun than the other. I'm in Bellingham, Wash. We recently had extreme temperatures for the area - in the 90s. Is this "normal"? None of the other trees on my street seem to be in this condition, and I wonder if it's because the trunk of this tree has been dinged a few times in the past 10 months by construction vehicles and trucks. I have attached pictures, including one of the dinged trunk.