How does the Navy inform personnel about hurricane warnings?

The correct choice indicates that the Navy utilizes official memos to inform personnel about hurricane warnings. Official memos serve as a formal and authoritative means of communication within military organizations, ensuring that critical information reaches service members in a direct and clear manner. Memos are typically well-documented and can provide specific instructions or details regarding safety measures, evacuation procedures, and other pertinent actions that personnel need to take in response to hurricane warnings.

This method allows for a systematic distribution of information that can be tracked and referenced, ensuring everyone receives consistent messaging. While other methods of communication, such as social media or radio communications, can be used, they do not hold the same level of formality or reliability in a military context compared to official memos.