Which type of pressure system generally indicates fewer clouds, better visibility, and lighter winds at the surface?

Study for the Transport Canada Private Pilot License Test. Study with flashcards and multiple-choice questions, each question has hints and explanations. Get ready for your exam!

A high-pressure system is associated with sinking air, which leads to clearer skies and a more stable atmosphere. As air descends, it warms and inhibits the formation of clouds, resulting in fewer clouds and improved visibility. This also contributes to lighter winds at the surface, as the pressure gradient is generally weak in high-pressure areas.

In contrast, a low-pressure system typically brings rising air, which can lead to cloud formation and precipitation. Low-pressure systems are often characterized by more turbulent conditions, resulting in stronger winds and poorer visibility.

While stable and variable pressure systems can affect weather conditions, high pressure stands out for its consistent association with clear skies and calm weather. A stable system may maintain better conditions, but it doesn't necessarily indicate the overall high-pressure characteristics that promote fewer clouds and lighter winds. Variable pressure does not indicate a specific weather pattern and can encompass a range of conditions, making it less relevant when discussing ideal visibility and calm winds.

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