What is the day marker for a hurricane warning?

The day marker for a hurricane warning is represented by two red flags with a black square. This specific configuration is universally recognized in the maritime community as a signal indicating that hurricane conditions are expected to affect the area, providing critical information for navigators and those at sea. The use of two red flags emphasizes the severity of the warning, alerting vessels to prepare for potentially dangerous weather conditions associated with a hurricane.

The other options, while they may represent various alerts, do not correctly denote a hurricane warning. Understanding the distinct markings for different weather events is essential for safety at sea, and recognizing the two red flags with a black square allows mariners to take appropriate actions to protect their vessels and crew.