Low pressure systems, or cyclones, are the big weather makers. When we're underneath or close to them, our weather will be cloudy, rainy or stormy. Sometimes we may even see temperatures rise and fall rapidly. During the Winter, low pressure systems are the main cause of Winter Storms and Blizzards.
A high pressure system, or anti-cyclone, is the opposite of a low pressure. When we're underneath or close to a high pressure, our weather will be calmer and more stable. This means more sunshine, less clouds and our consistent temperatures. High pressure systems are usually responsible for heat waves during the summer season, since they can prevent the weather from changing.
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