Why would clouds be more likely to form after warm air moves over a lake?
Item WC091002: Clouds are likely to form as air moves up over a mountain because air cools as it rises and clouds are likely to form as air cools. In the diagram below, warm air is moving over a lake and upward along the side of a mountain. Clouds do not form in air that does not already have clouds.
Why do clouds gather over mountains?
When wind blows across a mountain range, air rises and cools and clouds can form. Some clouds form when air encounters a mountain range or other types of terrain. The extra water vapor begins to condense out of the air parcel in the form of liquid water droplets and a cloud is formed. …
What is the phenomenon called that results in more rainfall on the windward side and less on the leeward side of mountain ranges?
The orographic effect occurs when air masses are forced to flow over high topography. As air rises over mountains, it cools and water vapor condenses. As a result, it is common for rain to be concentrated on the windward side of mountains, and for rainfall to increase with elevation in the direction of storm tracks.
Why do temperature changes accompany the vertical up and down motions of air parcels?
Why do temperature changes accompany the vertical (up and down) motions of air parcels? The atmosphere compresses descending air, causing the air to warm. The water vapor in the air condenses or deposits to cause cloud particles to form, which can lead to precipitation.
Are altocumulus clouds rare?
Mostly found in settled weather, altocumulus clouds are usually composed of droplets, but may also contain ice crystals. Precipitation from these clouds is rare, but even if rain does fall it doesn’t reach the ground.
What does altocumulus mean in Latin?
Altocumulus. From the Latin altum, which means height, upper air, and cumulus. Altostratus. From the Latin altum and stratus.
How tall are low clouds?
Low clouds are of mostly composed of water droplets since their bases generally lie below 6,500 feet (2,000 meters). However, when temperatures are cold enough, these clouds may also contain ice particles and snow.
At what height are rain clouds?
The prefix “nimbo-” or the suffix “-nimbus” are low-level clouds that have their bases below 2,000 meters (6,500 feet) above the Earth. Clouds that produce rain and snow fall into this category. (“Nimbus” comes from the Latin word for “rain.”) Two examples are the nimbostratus or cumulonimbus clouds.