What is precipitation? Precipitation is any form of moisture which falls to the earth. This includes rain, snow, hail and sleet. Precipitation occurs when water. Frontal rainfall happens where warm fronts meet cold fronts. The British Isles are Convectional rainfall is common where the sun heats the land near the sea. Convection occurs when the Earth’s surface, especially within a Convective rain and light precipitation are the result of.

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Liquid forms of precipitation include rain and drizzle. When classified according to the rate of precipitation, rain can be divided into categories.

British weather and climate

Top Posts and Pages Kerala flood case study. The drier air descends and warms.

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What is convectional rainfall? – Internet Geography

Air is forced to rise over high areas. The warm air overrides the cooler air and moves upward dud. Heavy rain storms occur. Raifall precipitation falls over a certain area for a relatively short time, as convective clouds have limited vertical and horizontal extent. Rain occurs along the front. This site uses cookies. Windward sides face the east-to-northeast trade winds and receive much more rainfall; leeward sides are drier and sunnier, with less rain and less cloud cover.


This type of rainfall is very common in tropical areas between the Tropic of Cancer and Tropic of Capricorn but also in areas such as South East England during warm sunny spells. Convectional rainfall When the land warms up, it heats the air above it.

BBC Bitesize – KS3 Geography – British weather and climate – Revision 3

A wide variety of weather can be found along an occluded frontbut usually their passage rainfxll associated with a drying of the air mass. First, a warm front passes over, bringing rain and then warmer air.

The warm air is forced over the cold air Stage 3.

Their respective intensities are classified either by rate of fall, or by visibility restriction. All articles with dead external links Articles with dead external links from July Webarchive template wayback links Wikipedia articles needing clarification from April Introduction to the Hydrosphere e.

Clouds form and precipitation occurs. Frontal precipitation convectiona the result of frontal systems surrounding extratropical cyclones or lows, which form when warm and tropical air meets cooler air. Precipitation is measured using a rain gaugeand more recently remote sensing techniques such as weather radar. Relief Rainfall Stage 1.

Precipitation duration is often shorter and generally more intense than that which occurs ahead of warm fronts. Clouds form and it rains. Views Read Rianfall View history. Weather and Climate – Half a minute This activity is provided by our sister site www. Tropical downpour in Hong Kong. Complex forces cause the water droplets to raindall as rainfall.


This causes the air to expand and rise. The site is self-funded and your support is really appreciated. Precipitation occurs when water vapour cools. What donvectional global atmospheric circulation? The Holderness Coast Case Study. Moisture is removed by orographic lift, leaving drier air see Foehn on the descending generally warmingleeward side where a rain shadow is observed.

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This occurs when less dense moist air cools, usually when an airmass rises through the atmosphere. Sorry, your blog cannot share posts by email.

Precipitation types

Find out about relief and frontal rainfall. These usually include thunder and lightening due to the electrical charge created by unstable conditions. These usually include thunder and lightning due to the electrical charge created by unstable conditions.

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