Cumulonimbus and aviation at this altitude, updraughts with speeds that can exceed . Such an updraught speed corresponds to the wind speed of a small hurricane. The speed can even exceed . The maximum number in the Beaufort scale is 12 ("hurricane force" wind) and is assigned to wind speeds of 64 knots or greater. If the Beaufort scale were extended, these updraughts would have a Beaufort number of 14 "in the vertical direction". The turbulence is then "extreme" at this altitude. Moreover, the diameters of the updraught columns vary between 2 km (air mass thunderstorm) and 10 km (supercell thunderstorm). The height
1942 Belize hurricane and eventually curved southeastward. Around 1200 UTC on November 11, the system made another landfall near Campeche, Campeche with winds of 45 mph (75 km/h). Less than six hours later, the storm weakened to a tropical depression and dissipated shortly thereafter. In the Bahamas, a barometric pressure reading of and force 9 sustained winds on the Beaufort scale were observed on at Georgetown on Exuma. No damage was reported in that country. Strong winds were reported in some areas of Cuba. Cayo Paredon Grande in Camagüey Province recorded sustained winds of , while the city of Camagüey observed wind gusts