Explain the difference between depressions and anticyclones and what causes each

Depressions:

• Depressions are low pressure areas which are caused when air rises
• The air rises because it is warmer than air around it or it can be forced up by high land
• As the air rises it cools and clouds form
• This causes unsettled changeable weather
• Depressions are often associated with fronts
• A front is where hot air is next to cold air
• The warm air is forced upwards, it cools and condenses causing clouds and rain

Anticyclones:

• Anticyclones are much the opposite of depressions
• Anticyclones are associated with high pressure which is caused by sinking air
• They bring settled / good weather
• Because air is sinking, air is not able to rise from below so no clouds or rain are able to form
• Anticyclones do bring fog and mist which in cold weather can lead to bad road conditions