The "cross seas" occurs when two separate weather conditions collide while moving in different directions.
This pattern of square waves is a beautiful sight to behold, but the natural phenomenon, which can appear and reappear within minutes, is also extremely dangerous.
More common in shallow waters, cross seas can often be seen off the western point of France's Isle of Rhé, for example, or on the beaches of Tel Aviv, though they can arise in many coastal regions around the world.
The pattern occurs when two wave systems cross while traveling at slanting angles to each other.
The waves from the older weather system continue on until they dissipate.
And the ocean becomes a swirling, dangerous place for swimmers and boats. According to a 2006 study, a large percentage of ship accidents happen as a result of the weather changes.
The powerful ocean currents that generate these unpredictable and unusually tall waves (up to nearly three metres high in some cases and referred to as 'white walls'), are capable of tipping over large boats and are suspects in many historical shipwrecks.
As such, life-savers warn that if you see them, you should under no circumstances enter the water. And if, by some chance, they suddenly appear around you, then the idea is to get to shore as quickly as possible.
This pattern of square waves is a beautiful sight to behold, but the natural phenomenon, which can appear and reappear within minutes, is also extremely dangerous.
More common in shallow waters, cross seas can often be seen off the western point of France's Isle of Rhé, for example, or on the beaches of Tel Aviv, though they can arise in many coastal regions around the world.
The pattern occurs when two wave systems cross while traveling at slanting angles to each other.
The waves from the older weather system continue on until they dissipate.
And the ocean becomes a swirling, dangerous place for swimmers and boats. According to a 2006 study, a large percentage of ship accidents happen as a result of the weather changes.
The powerful ocean currents that generate these unpredictable and unusually tall waves (up to nearly three metres high in some cases and referred to as 'white walls'), are capable of tipping over large boats and are suspects in many historical shipwrecks.
As such, life-savers warn that if you see them, you should under no circumstances enter the water. And if, by some chance, they suddenly appear around you, then the idea is to get to shore as quickly as possible.
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Source: Daily Star, Wikipedia, Science Alert, Pexels
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