British rainfall Depressions pass over Britain frequently. Why does most rain fall in the west? Highland areas receive more rain - many of these are in the west. Prevailing winds come from the south west carrying moisture from the Atlantic Ocean. Which types of rainfall commonly affect Britain? Relief rainfall Prevailing winds bring warm, moist air to the western British Isles.
Air is forced to rise over high areas. Air cools and condenses. Stage 4. Heavy rainstorms occur. These usually include thunder and lightning due to the electrical charge created by unstable conditions. Convectional rainfall is widespread in areas where the ground is heated by the hot sun, such as the Tropics.
This is why areas, such as the Amazon Rainforest, experience heavy rainfall most afternoons. Find out about relief and frontal rainfall. If you've found the resources on this page useful please consider making a secure donation via PayPal to support the development of the site. The site is self-funded and your support is really appreciated.
If you've found the resources on this site useful please consider making a secure donation via PayPal to support the development of the site. What is convectional rainfall? The area situated on the leeward side, which gets less rainfall is known as the rain-shadow area It is also known as the relief rain. Cyclonic rainfall, also known as frontal rain, is caused when two air masses of different temperatures meet.
This type of rain usually is due to the occurrence of cyclonic activities and is witnessed along fronts. As the air rises it cools, and its relative humidity increases. Clouds form as water vapor condenses, and then fall as rain. Cyclone is formed when warm air meets cold air. Stratiform rainfall usually occurs from nimbostratus cloud. Orographic rainfall occurs when a mass of air is pushed up because of a structure with very high elevation, such as a mountain.
The lifted air cools down and precipitation occurs. Rain shadow area is formed on the other side of the elevation. Rainfall is essential for the mere survival of plants and animals.
It brings fresh water to the earth's surface. If it is less, we face water scarcity and resultantly severe drought. In there was scantly rainfall in India and many areas were declared drought—hit. If rains are too much, floods take place which also causes severe devastation.
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