Which MESC hand signal indicates that help is needed?

The hand signal that indicates help is needed is the 1/2 arm wave for help or distress. This signal is widely recognized in surface water rescue operations, and it serves as a clear, visible method for individuals in distress to communicate their need for assistance without relying on verbal communication, which may be difficult in a noisy or chaotic environment.

This half-arm wave is specifically designed to attract attention and convey urgency, making it an effective way to signal rescuers or bystanders that immediate help is required. Understanding and correctly interpreting these signals during a rescue operation is crucial for responders to act quickly and effectively, ultimately increasing the chances of a successful rescue.

Other signals, such as the fist for stop, serve different communication purposes, while directional pointing is typically utilized to indicate a specific location or direction rather than a need for assistance. Additionally, the 3 taps on the head for retrieval is not a standard signal for help but rather a physical cue in specific operational contexts.