As a product of the deep cold, it froze a pipe in the basement. As a result of the frozen pipe, it burst and damaged a flimsy door I had in the basement. Well, this gives me a chance to make a proper door, compare to the MDF core thin ply shell door I am about to junk away.
To the right is a glimpse of the old door with MDF core. MDF loves water, it is always thirsty and swells and warps out permanently once it had its share.