High pressure systems are areas in the atmosphere where the air pressure is higher than the surrounding areas. These systems often bring clear skies and calm weather because they push clouds away. When air sinks in a high pressure system, it warms up, making it difficult for moisture to condense into clouds. This is why sunny days are often associated with high pressure. In addition to clear weather, high pressure systems can influence local climates. For example, they can lead to dry conditions in regions like the desert or Mediterranean areas. Understanding high pressure systems helps meteorologists predict weather patterns and keep us informed about upcoming conditions.