Wind and weather affect lifting operations how?

• A. Wind has no effect on loads or stability.
• B. Only rain affects lifting operations.
• C. Wind can cause load swing and instability; lifting should be halted or limits observed if wind exceeds manufacturer or site policy.
• D. Wind helps stabilize loads.

Answer: (D)

Wind acts on suspended loads as a real force, pushing on the load and the rigging. This can cause the load to sway, create unpredictable dynamic loads, and shift the system’s center of gravity, which undermines stability and increases the risk of contact with people, equipment, or the crane itself. Because of this, lifting operations must follow wind speed limits set by the crane manufacturer and site policy. If wind exceeds those limits or gusts become unpredictable, the lift should be halted or postponed until conditions are safe. When conditions are acceptable, operators may use anti-sway devices and other precautions to minimize movement, but wind does not stabilize loads; it introduces dangerous forces that must be managed.