And for AV, who insists on us calling it an "ark", and pointing out that this ark had no rudder, etc.
Another consideration is what would have happened to a big, wooden box in a stormy sea. Any sailor will tell you how important it is to maintain steerage way in heavy seas. That is the only way that the bow can be pointed into the swell. Sailing ships, even in gale force winds, carry some sail in order to keep the ship pointed in a direction that makes it easier to ride out the weather - stern to in the case of sailing ships. Well, Noah's ark was just a big box if we are to believe AV. There was no bow, or stern, and no sails.
Here's what happens to a ship (or a big box) that cannot maintain steerage way in a big storm. In December of 1944 the US Navy Task Force 38 was caught in a typhoon in the Philippine Sea east of Luzon. (The Caine Mutiny was set in that storm - LCdr Gerald Ford was serving aboard the USS Monterey during the typhoon.) In that storm, three destroyers (USS Hull, USS Spence, USS Monaghan) lost power when their engine rooms were flooded. All three ships had pumped out the ballast tanks in anticipation of refueling. All three capsized when they were turned broadside to the waves. All hands were lost.
You see, when the height of a wave exceeds the particular dimension of the ship that it encounters, over the ship goes. Waves as high as the length of a Navy destroyer just don't happen. Waves as high as the beam of the ship are common.
So how would Noah's big wooden box have fared? With no means of propulsion the ark would have been turned broadside to the first few small waves. If the 40 day storm was as severe as creationists tell us, Noah and family and all the animals spent 40 days rolling over and over and over - unless the ark settled quietly on the bottom.