Cumulonimbus clouds produce thunderstorms, blizzards, torrential rain, hailstorms and tornadoes. Though they have a low base, these clouds are very deep, and they can extend miles into the atmosphere.Know More
These clouds are so tall that though they're made of water droplets in their lower levels and made of ice crystals near the top. They are so dense that they are dark and menacing when viewed from the ground. This is because light is scattered by the many water and ice droplets in the cloud as it passes through.
A cumulonimbus cloud is created when convection currents interact with unstable air. Warm, moist air rises into the cloud, which leads to condensation and more warming. This contributes to fierce updraft currents. The ice crystals at the top of the cloud fall down through the cloud to create downdraft currents. These emerge from the bottom of the cloud as strong wind, which cools the air in the updrafts. Eventually this convection system stops, and the cloud finally decays.
However, in the act of decaying, the cumulonimbus cloud can release all its moisture in an intense storm. In other instances, the updrafts and downdrafts can separate and produce a supercell. This can produce a tornado.Learn more about Clouds
Stratus clouds are low-level, grey, fog-like clouds that often encompass the entire sky. They are uniform, often forming low-hanging shelves which lead to overcast days with little to no precipitation. Stratus clouds do not occur above 6,000 feet, and though they often resemble fog, these clouds do not reach all the way to the ground.Full Answer >
Clouds are made up of ice crystals and droplets of water. These form when water evaporates from bodies of water, such as the oceans. Once water reaches higher altitudes in the atmosphere, it becomes liquid and solid.Full Answer >
Clouds can be measured by the height and appearance of the shape to determine weather conditions. Scientists often use a device, such as the micropulse lidar or infrared thermometer to determine a cloud's altitude and height.Full Answer >
According to Met Office, clouds form when water vapor in the air condenses into tiny drops of water or ice crystals that then settle on dust particles in the atmosphere. Condensation happens when the air is saturated and cannot hold any more water vapor; this can occur when the amount of water in the air increases or when the air is cooled to its dew point.Full Answer >