Rain Shawdow Effect
Snow storms in the Appalachian Mountains and the Rocky Mountains form when moist air is forced to rise over the mountains, leading to cooling and condensation of water vapor into snow. The moisture for these storms can come from nearby bodies of water, such as the Atlantic Ocean for the Appalachian Mountains and the Pacific Ocean for the Rocky Mountains.
There are two main reasons. First, air entering into a mountain range loses much of its moisture on the windward side of the range, and so is usually rather dry over and downwind of the mountains. The strong thunderstorms needed to produce tornadoes generally require a significant amount of moisture. Additionally, the mountainous terrain may interfere with the airflow that feeds the storm.
moisture soil, rolling mountains to flat land.
A rain shadow is when clouds come up to a mountain and say hi but the mountains dont let them cross if they have rain in them. JK but in a way this does happen. The REAL definition: When an array of clouds approach a mountain range with moisture in them the wind tries to push the clouds to the other side of the mountain but because the mountains are higher up and have cold air, the clouds are not strong enough to carry moisture over so the rain gets dumped on the windy side and only the hot air is transferred over the mountains because hot air is able to rise higher than the cold which ultimately creates a desert on the non windy side.
This depends on various climatic conditions. In tropical climate if it is raining,moist then relative humidity very high. Day temperatures and corresponding dew point governs the % moisture in air. As a thumb rule you may confirm at say 30 deg.C day temperature moisture will be 4 to 5% by volume in air.
As air moves up a mountain range, it cools and releases moisture, leading to precipitation on the windward side. By the time the air descends on the downwind side, it has already lost much of its moisture, resulting in drier conditions. This process is known as the rainshadow effect.
The Atlas Mountains stop moisture from reaching the Sahara.
No, rain shadows are areas of decreased precipitation on the leeward side of mountains due to the blocking of moisture by the mountains. They do not blow in circular belts across the Earth; rather, they are localized phenomena influenced by the geography of the area.
Snow storms in the Appalachian Mountains and the Rocky Mountains form when moist air is forced to rise over the mountains, leading to cooling and condensation of water vapor into snow. The moisture for these storms can come from nearby bodies of water, such as the Atlantic Ocean for the Appalachian Mountains and the Pacific Ocean for the Rocky Mountains.
There are two main reasons. First, air entering into a mountain range loses much of its moisture on the windward side of the range, and so is usually rather dry over and downwind of the mountains. The strong thunderstorms needed to produce tornadoes generally require a significant amount of moisture. Additionally, the mountainous terrain may interfere with the airflow that feeds the storm.
The term that describes all forms of moisture leaving the atmosphere is "precipitation." This includes rain, snow, sleet, and hail.
Examples of factors that limit geographic distribution include physical barriers like mountains or bodies of water, climatic conditions such as temperature and precipitation, availability of resources like food and water, and human settlements such as cities and roads.
PERCOLATION
Mountain building caused by plate tectonics - two colliding plated forced the Andes Mountains and the Chilean Coastal Ranges to be lifted up. The Atacama resulted on the plateau that developed between the two ranges of mountains. The Atacama fell in the rain shadow of the mountains preventing moisture from reaching the area.
Gulf of Mexico
Lake effect snow: water from Lake Erie picks up water and holds that moisture, releasing it in the form of snow downwind of the lake.
The Atlas Mountains act as a barrier, blocking moisture that would otherwise reach the Sahara desert from the north. This rain shadow effect of the mountains contributes to the arid conditions in the Sahara region.