"Spindrift usually refers to spray, particularly to the spray blown from cresting waves during a gale. This spray, which \"drifts\" in the direction of the gale, is one of the characteristics of a wind speed of 8 Beaufort and higher at sea.In Great Britain \"spindrift\" is the telltale sign used by mariners to define a Force 8 (Beaufort Scale) wind (not higher) when observed at sea."@en . . .