High pressure refers to a condition where the atmospheric pressure is higher than the surrounding areas. This often occurs in weather systems, where a high-pressure system can lead to clear skies and calm weather. The air in these systems is usually descending, which prevents cloud formation and precipitation. In meteorology, high pressure is associated with stable air conditions. It can influence local climates and weather patterns, often resulting in warmer temperatures during the day and cooler nights. Understanding high pressure is essential for predicting weather changes and planning outdoor activities.