In lift planning, why is weather information included?

• A. Weather is included to affect only crew morale.
• B. Weather data is included to meet a documentation requirement.
• C. Weather is included to plan coffee breaks.
• D. Weather information is included to address potential weather hazards and contingencies.

Answer: (D)

Weather information is included in lift planning to address potential weather hazards and contingencies. Conditions directly affect crane stability, load control, and worker safety. Wind speed and gusts set safe operating limits for booms and loads; rain, snow, or ice can change ground conditions and traction; low visibility complicates signaling and coordination; lightning creates an immediate shutdown risk. Having weather data allows planners to assess risk, set action thresholds, schedule or pause lifts, adjust rigging or crane setup, and activate contingency plans if conditions worsen. The other options miss the core purpose: morale is not the driving reason for weather data, documentation needs are secondary to safety considerations, and planning coffee breaks is irrelevant to safe lifting operations.