What indicates that a lifeguard should signal for an evacuation?

A lifeguard should signal for an evacuation in response to an imminent life-threatening situation, such as a severe weather event. This is because the safety of swimmers and other patrons is the primary responsibility of lifeguards. In situations where there are clear and present dangers, such as approaching storms with lightning, strong winds, or heavy rainfall, immediate action is required to protect individuals in and around the water. Promptly signaling for an evacuation allows time for everyone to exit the water and seek shelter, thereby reducing the risk of injury or worse outcomes that can occur during severe weather.

Other scenarios, like an increase in swimmer numbers or the end of swim lessons, do not invoke immediate danger requiring evacuation. They involve routine operations or management practices rather than urgent safety threats. Similarly, a scheduled break for lifeguards may call for temporary pauses in supervision but does not warrant an evacuation based on safety concerns. Thus, recognizing and responding to imminent threats is critical for the lifeguard's role in ensuring the wellbeing of everyone at the facility.