* Mercury's Atmosphere: Mercury has a very thin, almost nonexistent atmosphere called an exosphere. This exosphere is extremely tenuous and easily escapes into space.
* Lack of Water: Without a significant atmosphere and water, the conditions necessary for traditional storms, like those we experience on Earth, are completely absent.
* Solar Wind: The solar wind, a constant stream of charged particles from the Sun, constantly blasts Mercury. This solar wind strips away any particles in the exosphere, preventing the build-up of any significant atmospheric pressure.
While there are no 100-year long storms, Mercury does experience intense solar storms. These storms can cause temporary, localized disturbances in the exosphere, but they are short-lived and not comparable to the storms we see on Earth.
