As the depression approaches cloud increases and it begins to drizzle. As the front gets nearer temperatures increase and the rain gets heavier. With the passage of this warm front (so called because of the rising temperatures) the weather clears up and the temperature rises further in the warm sector.
The cold front usually brings heavy rain and a fall in temperature as it passes once the cold front has passed conditions in the cold sector are unsettled, cool and often windy.
Conditions may settle for 12-24 hours as a ridge of relatively high pressure moves in separating one low pressure system from the next one over britain, often about 24 hours later.
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