What happens to moist air as it reaches a mountain?
As air rises, it expands because there is less atmospheric pressure at higher altitudes. As air expands, it cools. Cool air holds less mois- ture, rain falls and the cloud loses moisture. After it passes over the mountain, it drops down in elevation and the air becomes compressed and becomes warmer.
What happens to wind as they move up the side of a mountain?
Mountains and mountain ranges can cast a rain shadow. As winds rise up the windward side of a mountain range, the air cools and precipitation falls. On the other side of the range, the leeward side, the air is dry, and it sinks.
What happens to the moisture in the air as it cools down?
Water vapor in the air reaches its dew point as it cools in the air around the can, forming liquid drops of water. Condensation is the process where water vapor becomes liquid.
When warm moist air is forced to rise over mountains the air cools and water droplets form leading to precipitation this process is known as?
Orographic precipitation, rain, snow, or other precipitation produced when moist air is lifted as it moves over a mountain range. As the air rises and cools, orographic clouds form and serve as the source of the precipitation, most of which falls upwind of the mountain ridge.
What happens when air cools?
Because each molecule uses more space for motion, the air expands and becomes less dense (lighter). … 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.
What is the advantage of staying in the leeward side of the mountain?
If that is what you are asking, the people on the leeward side of the range will see much less rainfall than those on the windward side. The reason for this is that the mountains will force the air upwards. This air will be relatively full of moisture. As it rises, the moisture will condense and fall.
Which side of the mountain gets less rainfall?
THE LEEWARD SIDE OF A MOUNTAIN GETS LESS RAIN BECAUSE IT IS SITUATED TO THE NORTH OF MOUNTAIN AND WHEN THE WATER VAPOUR MOVES TOWARDS THESE MOUNTAIN THESE MOUNTAINS OBSTRUCT THE VAPOUR AND IT STARTS MOVING UPWARD ALONG THE SLOPE OF THE MOUNTAIN AMD THEREFORE THE LEEWARD SIDE RECEIVES LESS RAINFALL.
Do mountains stop wind?
Mountains make a barrier for moving air. The wind pushes air, and clouds in the air, up the mountain slopes. The atmosphere is cooler at high elevations, and there is less of it: lower pressure makes it hard for lowland animals to get enough air to breathe.
Does cold air hold more water?
A: Actually, air does not hold water. Warm air often has more water molecules than cooler air but this is because of the energy level of the water particles.
Does cold air hold more humidity?
Cold air can’t retain as much moisture, so high humidity is less common in chilly weather. … Inside your house, lowering the temperature is an effective way to minimize humidity to a certain extent, because the air simply can’t hold on to the same level of moisture when it’s cooler.
What air is the driest?
People think about the Pacific Northwest as being a moist place, but during mid-summer we are often one of the driest.