What is an Anticyclone?

• Anticyclones affect the British Isles far less often than depressions.

•Anticyclones are areas of high pressure, whereas depressions are areas of low pressure.•Once Anticyclones develop they tend to remain for several days, bringing dry bright and settled weather to the UK.

How do they form?

• Anticyclones form when air is descending, and as more air descends so the pressure increases. •Descending air is warming air, which means that it picks up moisture from the atmosphere, rather than releasing it through condensation. •This lack of condensation means that few clouds form and the weather remains fine and dry.

What do they look like?