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- Is “come September” a kind of inversion? 2 answers
Nevertheless, the crucial factor in the fleet’s demise was the Japanese attacks which had forced the Mongol commanders to have their large and unwieldy ships lashed together using chains. It was this defensive measure which proved fatal, come the typhoon.
— Mark Cartwright, “The Mongol Invasions of Japan, 1274 & 1281 CE” (Article), Ancient History Encyclopedia, 02 July 2019.
This is the article that I've been reading but I do not understand the last sentence, especially the “come the typhoon” part.
What does this mean?