Which of the following is a danger when working on electrical lines during adverse weather?

Working on electrical lines during adverse weather presents several hazards, but lightning strikes pose the most significant risk. Lightning is a powerful natural electrical discharge that can occur during thunderstorms, and individuals working on or near exposed electrical infrastructure are particularly vulnerable. Linemen are usually working high up and in open areas, making them prime targets for a direct strike, which can result in severe injury or even fatalities. Additionally, the presence of moisture in the air increases the conductivity of the environment, making electrical tools and equipment more dangerous.

While the other options present various hazards that may occur in adverse weather conditions, they do not carry the same level of immediate life-threatening danger as lightning. For instance, wildlife activity and reduced visibility due to fog may create challenging conditions but are typically manageable with appropriate precautions. Higher foot traffic could pose concerns regarding safety and coordination but is not directly related to the inherent dangers of working with electricity in a storm. Therefore, the threat of lightning strikes stands out as the most critical consideration for safety when working on electrical lines under such circumstances.