The Beaufort scale was extended in 1946, when forces 13 to 17 were added.

The Beaufort scale is a way to measure weather conditions, based on observations.

The Beaufort scale, for example, shows the correspondence between wind speed and sea states.

The Beaufort scale is a way to tell how strong the wind is.

Taiwan uses the Beaufort scale with the extension to 17 noted above.

In the middle of the night, the wind speed reached hurricane force 48-55 m/s (12 on the Beaufort scale).

In the lift I decided that the Beaufort scale was at least eight, more likely nine.

The numbers refer to the Beaufort Scale of wind strength.

The Beaufort scale was first introduced in 1805, and in 1921 quantified.

The Beaufort scale is a scale for measuring wind speeds.