1. Beaufort scale - Noun
2. Beaufort scale - Proper noun
a scale from 0 to 12 for the force of the wind
an international scale of wind force from 0 (calm air) to 12 (hurricane)
Source: WordNetFerries remain docked in most Greek ports on Thursday due to strong northerly winds reaching up to 9 on the Beaufort scale, state-run news agency ANA-MPA reported. Source: Internet
During an interview with Xinhua, the captain Zhang Shunwen said that at that time, the wind, blowing from south to north, was around grade 3-4 on the Beaufort scale. Source: Internet