articles

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 ... More »

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. More »

Altocumulus clouds are midlevel clouds that often presage cold fronts in temperate climates. The bottoms of these clouds can be found around 6,500 to 13,000 feet in the polar regions, and up to 20,000 feet in the tropics... More »

similar articles

Stratus clouds are formed when an upward-moving current of air collides with a thinner layer of air above it, causing water drops to form. The name "stratus cloud" derives from the shape of the cloud formation, where the... More »

Like all clouds, stratus clouds are made of water vapor, water droplets and even ice crystals. Stratus clouds are identified not by what they are composed of, but by their general appearance, which is uniform, wide-rangi... More »

Cumulonimbus clouds are the tallest clouds in the sky, reaching well into the troposphere. Although the bottom of a cumulonimbus cloud contains water, the top of the cloud reaches so high that it contains ice crystals. More »

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. More »