9
Force 12 is hurricane force.
12 is a Hurricane on the Beaufort Scale
The Highest measurement of Beaufort scale is 12, which refers to Hurricane-force.
Usually force 12 (Hurricane Force), but after Typhoon Chanchu, Some countries extended it up to 17 (Hurricane Force-5?)
Like all hurricanes, it was a 12 on the Beaufort Scale. That is as high as the scale goes.
Category 1
12 Hurricane Force on the Beaufort Scale
Sailors and forecasters use the Beaufort Wind Scale as a way to rate wind speed. The scale ranges from zero for calm to 12 for a hurricane.
12 is a Hurricane on the Beaufort Scale
Such winds are considered hurricane force, but other types of windstorms including tornadoes, derechos, and microbursts.
A beaufort scale measures wind speed.
The Beaufort scale was invented in 1805.