What type of weather does an increase in atmospheric pressure usually signify?

An increase in atmospheric pressure typically signifies clear weather because this phenomenon is often associated with descending air that leads to stable conditions. When atmospheric pressure rises, it indicates that there is a predominance of high pressure in the area, which tends to suppress cloud formation and precipitation. As a result, clear skies and calm conditions are usually observed in such scenarios. This is rooted in the principles of meteorology, where high-pressure systems are linked to fair weather as opposed to the instability that low-pressure systems often bring, which can result in thunderstorms, intense rainfall, or fog. Thus, an increase in atmospheric pressure is a reliable indicator of approaching clear weather.