48–55 knots. Very high waves with long overhanging crests; the sea surface takes on a white appearance. Safety and Preparation Guide
"Gale force" (often misspelled as "gail force") primarily refers to sustained surface winds between (39–54 mph). In meteorology, these conditions correspond to forces 7 through 10 on the Beaufort Wind Scale . Understanding Gale Force Classifications gail force
Winds are categorized based on their intensity and the observed conditions they cause: 48–55 knots
28–33 knots. Sea heaps up and white foam from breaking waves begins to be blown in streaks. gail force
Gale force winds can cause structural damage to roofing and siding and create life-threatening conditions for mariners. Weather Spotter's Field Guide - Non-supercell Tornadoes