Wind Strength Chart

Wind SpeedDescription
1-3 mph Calm, smoke rises vertically.
4-7 mph Smoke shows wind direction, vanes do not move.
8-12 mph Wind felt on face, leaves rustle, vane slowly moves.
13-18 mph Leaves and small branches move, light flags extend.
19-24 mph Leaves rise up and braches move, flags are flapping.
25-31 mph Small trees sway, flags flap and ripple.
32-38 mph Large branches in motion, whistling heard in the air.
39-46 mph Whole trees in motion, resistance while walking against wind.
47-54 mph Whole trees in motion, strong resistance while walking against wind.
55-63 mph Slight structural damage, weak shingles blow off roof.
64-72 mph Trees uproot and break, heavy structural damage to buildings.
73+ mph Look out!! Be somewhere else!
Ajax loading bar, grey and white stripes moving towards the right

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