Good weather is usually associated with a region of __________.
• Barometric pressure and what it indicates about air masses • Differences between high-pressure and low-pressure systems in terms of weather • Typical weather conditions near highs vs. lows (clear vs. stormy/cloudy)
• Think about what kind of pressure system is usually over an area when you see clear skies and calm conditions. • Recall which type of pressure system is commonly linked to storms, rain, and strong winds—that one is usually the opposite of fair weather. • Consider what your barometer does on board when a front bringing bad weather is approaching—does it tend to rise or fall?
• Be clear on which pressure system typically brings stable, sinking air and clearer skies. • Remember that falling barometric pressure is usually a warning sign, not a fair-weather sign. • Eliminate any option that is not a standard way mariners describe barometric pressure trends.
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