Beaufort Wind Scale - Variable Description

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Variable Description
Variable: Wind 2 Speed
Units m/s
Description So just how fast is the wind blowing?

Beaufort Wind Scale

0 --- Calm less than 1 mph (0 m/s) Smoke rises vertically
1 --- Light air 1 - 3 mph 0.5-1.5 m/s Smoke drifts with air, weather vanes inactive
2 --- Light breeze 4 - 7 mph 2-3 m/s Weather vanes active, wind felt on face, leaves rustle
3 --- Gentle breeze 8 - 12 mph 3.5-5 m/s Leaves & small twigs move, light flags extend
4 --- Moderate breeze 13 - 18 mph 5.5-8 m/s Small branches sway, dust & loose paper blows about
5 --- Fresh breeze 19 - 24 mph 8.5-10.5 m/s Small trees sway, waves break on inland waters
6 --- Strong breeze 25 - 31 mph 11-13.5 m/s Large branches sway, umbrellas difficult to use
7 --- Moderate gale 32 - 38 mph 14-16.5 m/s Whole trees sway, difficult to walk against wind
8 --- Fresh gale 39 - 46 mph 17-20 m/s Twigs broken off trees, walking against wind very difficult
9 --- Strong gale 47 - 54 mph 20.5-23.5 m/s Slight damage to buildings, shingles blown off roof
10 -- Whole gale 55 - 63 mph 24-27.5 m/s Trees uprooted, considerable damage to buildings
11 -- Storm 64 - 73 mph 28-31.5 m/s Widespread damage, very rare occurrence
12 -- Hurricane over 73 mph over 32 m/s Violent destruction

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