Flood from vapor canopy (Talk.Origins)
Source: Morris, Henry M., 1974. Scientific Creationism, Green Forest, AR: Master Books, pp. 124-125,210-211.
This is an outdated theory that most creation scientists have long since abandoned. This a good case of creation science in action as a true science. When this theory was first proposed, there was no real way of testing its validity. However, things like this can now be modeled on computers. Creation scientists checked it and found it was unworkable and for the most part have abandoned it. This is supported by the fact that Talk Origins uses a creationist source as a reference.
(Talk.Origins quotes in blue)
Brown, Walt, 1995. In the Beginning: Compelling Evidence for Creation and the Flood. Phoenix, AZ: Center for Scientific Creation, pp. 174-179.
There are some who still hold to it and are trying to make it work, but that too is typical of science in action.