As warm, moist air mixes with cold, dry air. The relative humidity will increase and water will condense. The boundaries between warm, moist air and cold, dry air is where storms frequently occur. … After it passes over the mountain, it drops down in elevation and the air becomes compressed and becomes warmer.
What happens when warm moist air rises over a mountain?
Water vapor or moist air rising over a mountain will cool and precipitate as rainfall. As water vapor, or moist air approaches a mountain, it will rise because the mountains are in the way. The higher you go up a mountain the colder it becomes. The moisture in that air then condenses into clouds and eventually, rain.
What happens to warm moist air as it rises over the mountain dry air as it moves down the mountain?
Answer: As air rises over a mountain it cools and loses moisture, then warms by compression on the leeward side. … The leeward side of the mountain experiences a rainshadow effect. Explanation: Thank you.
What happens to warm moist air as it moves up a mountain Why think about change in density temperature and rainfall?
As warm, moist air rises up the side of the mountain – known as the windward side – it expands (because there’s less pressure) and it therefore cools. … It’s also why the windward side is rainy and the leeward side is dry.
What happens to air when it goes over a mountain?
When air reaches the mountains, it is forced to rise over this barrier. As the air moves up the windward side of a mountain, it cools, and the volume decreases. As a result, humidity increases and orographic clouds and precipitation can develop.
What happens to moist air if it rises high enough?
If warm moist air rises, it will expand and cool. As it cools, the relative humidity will increase and water will condense. It can then fall back to the earth as precipitation. As air rises, it expands because there is less atmospheric pressure at higher altitudes.
What happened to dry air as it moves down the mountain?
Answer: It will happen is precipitation falls as the air rises over the mountains, the air will be dry as it sinks on the leeward size. This dry, sinking air causes a rainshadow effect , which creates many of the world’s deserts.
Why does heated air rise up?
As the molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
What happens with the temperature of air as it starts to rise?
As air warms up, the molecules start to vibrate and bump into each other, increasing the space around each molecule. … The opposite effect happens when air cools. As the temperature drops, molecules move more slowly, taking up less room. The amount of space the air takes up shrinks, or reduces the air pressure.
Why does air density decreases with increasing temperature?
Like other materials, warm air is less dense than cool air. Since warmer molecules have more energy, they are more active. The molecules bounce off each other and spread apart. Another factor that affects the density of air is altitude.
What would the temperature be if the air returned to sea level on the leeward side of the mountain?
The leeward slope winds can raise temperature as much as 1 degree Celsius for every 100-meter drop in elevation (5.5 degrees Fahrenheit per 1,000 feet).
Which side of the mountain receives the most precipitation?
The leeward side receives more precipitation than the windward side.
What is most likely to happen when moist air is forced up the windward side of a mountain?
When air is forced to rise on the windward side of a mountain, adiabatically cooling often leads to precipitation and cloud formation; air on the leeward side of the mountain (in the rain shadow) has lost moisture rising up the windward side, it will warm adiabatically, reducing its RH even more.