In rescue operations, what does the 'wave chem light' signal indicate?

The 'wave chem light' signal in rescue operations is used to indicate that rescuers should move in for pickup. This signal is essential for effective communication between the swimmer and the rescue team, ensuring that the rescue is executed smoothly and safely. The wave chem light is typically used when visibility may be compromised, making it a reliable and visible way to convey this specific instruction. By using the chem light, the person in the water communicates their readiness and the urgency of the situation, prompting the rescue team to take immediate action to retrieve them or the individuals they are assisting.