Yes, one needs to be concerned with wind from all cardinal directions. Thin lightly along the edges in the transition zones with the adjoining areas. The major part of the stand will be marked to the appropriate basal area however. The prevailing wind may be west and the trees wind firm more so to that direction, but the once in awhile southeastern will knock them down. Even with the best of planning, a storm down draft may also clear some patches in the stand's interior, thus we have some diversity from mother nature.