Lifeguards post the flag based on safety considerations, such as the number of people on the beach, the size of the surf, and how many lifeguards are on duty. The red and white quartered: Evacuate ...

Signal flag on a wooden pole. Singal flag is red and white cut across the diagnol. The red section has three ties that attach the flag to the pole. ... Dimensions H x W x D: 24 × 17 1/2 × 1 in. (61 × ...

Weather signal flags grew out of the use of the maritime signal flag, which was red, with a black square inside. Starting in 1871, this flag was used at 20 ports on the Atlantic and Gulf Coasts, ...

We’ve all been there. You show up at a beach, and there’s a colored flag, sometimes more than one, fluttering in the wind. The lifeguards put it there for a reason, but what does it mean?