Storm clouds are dark, thick clouds that form when warm, moist air rises and cools, causing water vapor to condense. These clouds are often associated with severe weather, including heavy rain, thunderstorms, and sometimes even tornadoes. The most common types of storm clouds are cumulonimbus clouds, which can reach high altitudes and produce intense precipitation. When storm clouds gather, they can block sunlight and create a gloomy atmosphere. The presence of these clouds often indicates that a storm is approaching, prompting people to prepare for potential weather changes. Observing storm clouds can help in predicting the severity of upcoming weather events.