Every machine has different restrictions and limitations when it comes to wind speed.
With weather conditions hitting hurricane levels in parts of the UK this week, the last place you should be in these particular conditions, is in a cherry picker or scissor lift meters from the ground. Outdoor machines are all rated to specific wind speeds which are stated in the operators manual and usually on a decal close to the control box. Sometimes access platforms have varying restrictions dependent on the number of persons and quantity of tools in the basket, as well as when working indoors.