What does two long whistle blasts signal in a lifeguarding context?

In lifeguarding, two long whistle blasts serve as a signal for a major emergency situation. This established protocol is crucial for ensuring a swift and coordinated response from all lifeguarding personnel. When two long blasts are heard, it alerts lifeguards that there is an urgent situation that demands immediate attention, prompting them to take necessary actions such as assessing the scenario, rescuing patrons, or calling for additional resources if needed.

This signaling method fosters a clear communication system among lifeguards on duty, allowing them to quickly react to potential threats to safety, ensure the well-being of all individuals in the water, and effectively manage emergency situations.