In a boating emergency, which method is typically least effective for signaling distress?

Yelling for help is considered the least effective method for signaling distress primarily due to limitations in both reach and clarity. Sound can travel relatively short distances, especially over water, and can easily be drowned out by environmental noises such as waves, wind, and engine sounds. Furthermore, a person in distress may not be able to yell continuously or at a volume that would effectively alert nearby vessels.

In contrast, using flares, a VHF radio, and displaying a distress flag are all established distress signals with far greater efficacy. Flares are designed to be visible from long distances and can alert vessels far beyond the hearing range of a person yelling. A VHF radio allows for precise communication, enabling the distressed boater to provide details about their situation and receive immediate assistance. Displaying a distress flag is a recognized visual signal that alerts nearby boats and usually adheres to standard maritime protocols.

Overall, while yelling may have some utility in a very localized scenario, it is not a reliable or effective means of signaling for help in a boating emergency, especially when compared with other, more effective signaling methods.