The fluid dynamics of the ocean, influenced by the Earth’s rotation, create fascinating wave phenomena, such as the El Niño effect. In contrast, the Quantum Hall Effect (QHE) occurs in two-dimensional systems of electrons under a strong magnetic field and is governed by the Schrödinger equation, while ocean dynamics follow classical Newtonian physics. Despite these differences, the QHE exhibits behavior similar to El Niño! Using this analogy as an example, I will discuss how universal behaviors in hydrodynamics can arise in two systems that differ greatly in size, scale, and governing theories albeit with subtle changes.