Which equipment is essential for operations when dealing with low visibility conditions?

In operations where visibility is compromised, such as in fog, heavy rain, or during nighttime, chemical lights are essential because they provide a reliable source of illumination that can enhance visibility for both the rescue swimmer and any individuals in distress. These lights can be activated quickly and are often waterproof, making them suitable for use in aquatic environments.

Using chemical lights helps establish a visual reference point for coordination and communication, which is crucial for safety in low-visibility situations. They can also assist in marking locations during search and rescue operations, helping to guide personnel back to a safe area or to indicate the position of a rescue swimmer in the water.

While life vests, thermal blankets, and first aid kits are all important safety items in a rescue scenario, they do not directly address the issue of low visibility. Life vests are necessary for buoyancy and safety while in water; thermal blankets are used for warmth after rescue; and first aid kits are essential for treating injuries. However, none of these items specifically enhance visibility in adverse weather conditions like chemical lights do.