In the event of forecasted thunderstorms, what bill should the Officer of the Deck ensure is in place?

The appropriate bill to have in place during forecasted thunderstorms is the heavy weather bill. This document outlines specific procedures and protocols that must be followed to ensure the safety and integrity of the vessel and personnel during severe weather conditions.

In the context of thunderstorms, the heavy weather bill includes measures such as securing all loose gear, ensuring watertight integrity, and preparing for potential changes in operational status. It typically emphasizes the importance of monitoring weather updates closely and maintaining communication with the command regarding the evolving situation.

In contrast, the other options do not specifically address the unique challenges posed by thunderstorms. Normal operations do not account for the heightened risks present during severe weather, while the small craft bill is more relevant to operations involving smaller vessels facing rough seas. The routine maintenance bill pertains to the upkeep of the vessel and its systems, which is not a priority when immediate weather-related safety procedures must be enacted. Therefore, the heavy weather bill is crucial for safeguarding the ship and crew in anticipation of thunderstorms.