Which weather condition is most likely associated with a high-pressure system?

• A. Frequent thunderstorms
• B. Clear and calm conditions
• C. Overcast skies
• D. Unpredictable weather patterns

Answer: (B)

A high-pressure system is primarily associated with clear and calm conditions. This occurs because high pressure leads to descending air, which inhibits cloud formation and promotes stable atmospheric conditions. When air descends, it warms up, reducing humidity and leading to clearer skies. Under these circumstances, the likelihood of precipitation is minimal, creating a peaceful, stable weather environment.

In contrast, frequent thunderstorms are typically linked to low-pressure systems, where rising air can create instability and moisture leading to storm development. Overcast skies are also more characteristic of low-pressure situations, where moisture-laden air rises and cools, forming clouds. Unpredictable weather patterns can arise from transitional weather scenarios or systems where high pressure interacts with low pressure, causing variable conditions, but this is not typical of high-pressure systems themselves.