What symbol represents a storm warning during the day?

The correct interpretation of the symbol for a storm warning during the day is represented by a red square flag with a black square in the center. This flag is a standard maritime signal indicating the presence of a storm warning. When raised, it communicates to all vessels in the area that storm conditions are imminent or expected, allowing them to take necessary precautions to ensure safety.

The choice incorporates color symbolism, where red typically signifies warning or danger, while the black square serves as a distinct marker to denote the specific nature of a storm warning, making it easily recognizable among other signals. Mariners and those involved in maritime operations are trained to respond to these symbols to mitigate risk effectively.

In contrast, while options like two red pennants and a solid red flag do convey warning messages, they are not specifically designated for storm warnings. Similarly, the white flag with a red dot does not have a recognized meaning related to storms and can lead to confusion if misinterpreted in a maritime context. Thus, the red square flag with a black square in the center is the correct and widely accepted signal for a storm warning during daylight.