Wow. So it sounds like the Mongolians were literally at Japan when the storm destroyed the Mongol’s ships. If they had been a few hours earlier or the storm had been a few hours later they would have landed and begun their invasion.
I think the way it happened was that some of the Mongols landed, then the storm hit, they went back to their ships, but the ships then sunk.
The only other time, IIRC, that a similar-sized typhoon hit the area was in October 1945, at precisely the time that MacArthur planned his invasion of Kyushu. Unlike D-Day, the ships going to the landing would have to have left days earlier, and would have been right in the path of the storm; the carnage would have been incredible.
One of my ancestors was one of the heroes during the first invasion. Legen in our family is he attacked one of the ships and cut off a few heads.
https://en.wikipedia.org/wiki/Takezaki_Suenaga