Winds blow clockwise around an anticyclone in the northern hemisphere. If high pressure persists over northern Europe in winter, then this can mean a spell of very cold east winds for Britain. In summer, however, high pressure over the British Isles or the continent usually brings warm, fine weather.
Winds blow anticlockwise around a depression in the northern hemisphere.
The side of the front which has the humps or triangles indicates the direction in which the front is moving. Behind the front the rain usually becomes lighter, or ceases, but the weather remains cloudy. The warm front does not necessarily bring higher temperatures. This is particularly so in summer, when the cloudy weather behind the front cuts off the heat from the sun. In winter, however, the south-westerly winds that usually blow after a warm front has moved through bring milder conditions.