Cumulonimbus clouds, of course!. These clouds are known to carry rain, hail, and thunder. Bigger versions are known as supercells, deadly storms that can spew out tons of rain, hail, wind, and even tornadoes!
The <span>Cumulonimbus cloud is usually associated with thunder and lightning. They are formed by water vapor and are very dense. (often seen during a thunderstorm)</span>
