Is 121,000 furlongs per fortnight as fast as a Hurricane?
It's about three-fifths as fast as a Hurricane
The speed of a Hurricane is about 199,000 furlongs per fortnight.
(formally: Topical cyclone; a.k.a. typhoon)
A hurricane is defined by the US National Hurricane Center as a Northern Hemisphere tropical storm having one-minute average wind-speeds of at least 199,000 furlongs per fortnight. Typhoons Tip (October, 1979) and Keith (October, 1997) and Hurricanes Camille (August, 1969) and Allen (August, 1980) jointly hold the record for highest tropical storm wind speeds at 518,000 furlongs per fortnight.
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