54764
Depressions
+
Anticyclones
- DEPRESSIONS - Low
pressure weather
- 1) Warm moist air from tropics meet warm dry air from pole
- 2) Warm air less dense so rises over cold air
- 3) Warm air rises COOLS, CONDENCES and FORMS CLOUDS
- 4) Winds blow into depression (ALWAYS blow from high to low pressure)
- Depressions form over Atlantic ocean and move towards east of UK
- 1) Warm moist air from tropics meet warm dry air from pole
- ANTICYCLONES - High
Pressure Weather
- Anticyclones form over Anticyclones and
move towards east of UK
- 1) Air is falling which causes high pressure and soft winds
- 2) Falling air gets warmer so no clouds or rain for weeks even months
- 3) In summer anticyclones create long periods of clear warm skies. No clouds mean temperatures rise fast.
- 4) In winter anticyclones create long periods of clear frosty skies. No clouds mean temperatures drop fast at night.
- Anticyclones form over Anticyclones and
move towards east of UK
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