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Understanding Weather Depressions and Their Impact

Learn about depressions, areas of low pressure that result in mild, changeable weather. Discover how they form, influencing temperature, rainfall, and winds, and how they impact weather patterns globally.

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Understanding Weather Depressions and Their Impact

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  1. WEATHER ASSOCIATED WITH DEPRESSION GEOGRAPHY Dain Cape

  2. A DEPRESSION • Is an area of low pressure • An isolated storm that forms a boundary of cold polar air moving south and warm tropical air moving north this leads to mild changeable weather. • Air is rising and this leads to the formation of cloud and rain. • Winds in a depression in the northern hemisphere circulate in an anticlockwise direction • Brings unsettled weather

  3. HOW A DEPRESSION FORMS • Depressions forms where warm air from the tropics meets and is forced to rise above cold air from the poles. • The rising air creates low pressure. Air carried by surface winds is drawn into the centre of the depression to replace the rising air. • The line that separates the 2 air masses is called the front. • At the front air is forced to rise often forming bands of cloud and rain.

  4. WEATHER ASSOCIATED WITH DEPRESSIONS

  5. Temperature increases behind the warm front making the area cloudy with patchy rain and drizzle.

  6. Short time of clear skies and dry weather.

  7. The cold front brings a period of heavy rainfall with gusty winds.

  8. Temperature falls behind the cold front.

  9. Sky clears and rain stops.

  10. BIBLIOGRAPHY http://wiki.answers.com/Q/What_is_a_weather_depression http://www.slideshare.net/tudorgeog/2-depressions Waugh David Geography an integrated approach

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