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High Pressure or Anticyclones

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Page 1: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking

High Pressure or Anticyclones

Page 2: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking

Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking.

Page 3: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking

•As the air is sinking, not rising, no clouds or rain are formed. This is because as the air sinks it warms - meaning it can hold more water.

•The absence of fronts means winds may be very light.

Page 4: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking

•Consequently, high pressure areas are often associated with settled, dry and bright conditions.

•In summer, anticyclones bring dry, hot weather. In winter, clear skies may bring cold nights and frost.

Page 5: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking

In cold conditions anticyclones may also bring fog and mist, as the cold forces moisture in air to condense at low altitudes.

Page 6: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking

Low Pressure Systems

Depressions or Mid-Latitude Cyclones

Page 7: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking
Page 8: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking
Page 9: High Pressure or Anticyclones. Anticyclones are the opposite of depressions - they are area of high atmospheric pressure, where the air is sinking