One day, when the wind was howling, I watched this tug trying to bring its barge in to Kawaihae harbor. Trouble was, the wind was blowing across the entrance channel. As it came in, the tug had to slow down, leaving the slab-sided barge even more prone to the effects of the wind.
In the top photo, the tug needs to leave the green buoy on its port (left) side, which it’s doing. Problem is, the wind is blowing from that direction, so the tug is already too far over. Also, it’s easy to see how the barge is no longer directly behind the tug, but has been pushed farther over by the wind.
In the middle photo, the tug has to leave the red buoy on its starboard (right) side, but it’s obviously too late for that. The tug captain knows he has no shot and, in the bottom photo, turns into the wind before heading out into open water.
I watched the tug try this maneuver several times without success. Next morning, on my way to work, I saw the tug and barge still out in the bay. It wasn’t until later that morning that it finally gained entrance to the harbor and tied up safely alongside the jetty.