Your present weather is sunny with a steady...

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Question 1 of 2066636ee928f7522a1c519eb0

Your present weather is sunny with a steady barometer. A low swell approaches your vessel from the south with crests passing at relatively long periods of about four per minute. What does this usually indicate?

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🔍 Key Concepts

• Swell vs local wind waves – what does a long-period, low swell usually tell you about where the storm is located? • Wave period and distance from storm center – how does a longer period relate to how far away the generating storm or cyclone is? • Tropical vs extra-tropical systems – which type of system commonly generates long, regular swells in lower latitudes?

💭 Think About

• Think about why the barometer is steady and the weather is sunny if waves from a strong storm are reaching you. What does that say about your location relative to the storm? • Compare the given wave period (about 4 crests per minute) to typical swell from distant storms versus steep, short-period seas from nearby bad weather. • Ask yourself which choice describes a situation where the main effects you feel first are long, regular swells rather than strong winds or rapidly falling pressure.

✅ Before You Answer

• Double-check what 4 crests per minute means in terms of wave period in seconds and whether that is considered a long swell. • Verify which options would normally be associated with rapid barometric change and worsening local weather, and which would still allow sunny, calm local conditions. • Confirm which phenomena are typically associated with long, low swell arriving well before the storm itself rather than nearby frontal passage.

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