Wiktionary
furious fifties
n. The area of the earth between 50 and 60 degrees south, prone to strong winds.
Wikipedia
Furious fifties
Usage examples of "furious fifties".
For the first thousand miles of its journey, the Salvation was hurried along by the winds of the Screaming Sixties, Furious Fifties, and Roaring Forties, the eastward-flowing circumpolar current, and of course, our fleet of oceangoing tugs.