Feb 7, 2025 · This rare wave pattern occurs when two swells coming from different directions meet and form squares on top of the water, often resembling a checkerboard or grid.

A cross sea (also referred to as a squared sea or square waves) is a sea state of wind-generated ocean waves that form nonparallel wave systems. Cross seas have a large amount of directional spreading. …

5 days ago · Explore the science behind square ‘checkerboard’ ocean waves, explaining their formation and inherent navigational hazards.

Sep 22, 2024 · "Square waves result from the intersection of two seas, also known as cross-sea or grid waves," he explained. "They occur when waves from different weather systems meet each other at …

In other words, square waves result from the intersection of two seas, also known as cross-sea or grid waves. A weather pattern in the region causes the waves to form at different angles. When two …

Oct 23, 2023 · In short, if you see a square wave, you want to get out of the water immediately as they pose real danger. However, it might not be so easy to see the pattern the two swells make when …

Nov 4, 2025 · Square waves, also known as cross seas, are a rare and striking ocean phenomenon in which waves intersect from two different directions, forming a grid-like or checkerboard pattern on …

Square waves are a rare phenomenon that occur when two ocean swells collide. They’re mesmerising to look at, and a sight to behold, but they’re dangerous for surfers, swimmers, and boats alike - so …

In its simplest definition, square waves happen when two ocean swells from opposite directions meet together. Remember, ocean swells are a series of waves formed along by winds blowing in the …

Nov 10, 2025 · Square wave formation typically occurs when two independent swell systems intersect at nearly right angles, generating cross-sea waves that create a grid-like pattern on the ocean surface.