When operating cranes, it's crucial to account for wind conditions to ensure safety. Here's what you need to know:

1. Wind Velocity Limits: Tower crane operation must cease when wind velocity at the crane's elevation exceeds the manufacturer's recommended limit, or if there are no manufacturer specifications, then specifications certified by a professional engineer [1].
2. Wind-Indicating Device: Employers must provide a wind velocity device that gives a visible or audible alarm to the crane operator at a predetermined wind velocity [2]. For hammerhead cranes, ensure the wind velocity device is compatible with the manufacturer's crane specifications, and crane operators are fully instructed regarding maximum permissible wind speeds during operation [2].
3. Load Charts: Crane load charts should contain wind velocity operating limits [3].
4. Outdoor Storage Bridges: These should be equipped with automatic rail clamps and a wind-indicating device to provide visible or audible alarms to the bridge operator at a predetermined wind velocity [4].
5. Mobile Cranes: Factors such as wind conditions must be taken into account for safe crane operation [5].

It is important to have a device to display wind speed, mounted above the upper rotating structure on tower cranes, or at/above the jib level on self-erecting cranes [6].

Calculations for wind pressure on outside overhead traveling cranes should be based on not less than 30 pounds per square foot of exposed surface [7].