You are steaming eastward in the North...

Question 1 of 31048fy_heal_CREATE_q105_2027

You are steaming eastward in the North Atlantic in an extratropical cyclonic storm and the wind is dead ahead. According to the law of Buys Ballot, where does the center of the low pressure lie?

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Question 1 of 31048

You are steaming eastward in the North Atlantic in an extratropical cyclonic storm and the wind is dead ahead. According to the law of Buys Ballot, where does the center of the low pressure lie?

🔍 Key Concepts

• Buys Ballot’s law and how it relates wind direction to the position of a low-pressure center in the Northern Hemisphere • The relationship between true wind direction felt on the ship and the ship’s heading/course • Difference between what you feel as ‘wind dead ahead’ and where the weather system itself is located around you

💭 Think About

• First, recall Buys Ballot’s law specifically for the Northern Hemisphere: if you stand with your back to the wind, where is the low-pressure center relative to your left/right sides? • Now imagine you are the observer on the ship: you are heading east and the wind is coming from straight ahead. If you were to ‘turn around and put your back to the wind,’ which direction would you then be facing, and where would left and right be? • From that imagined position, trace out where the low must lie around you: would it be forward, aft, to port (north side), or to starboard (south side) relative to your original eastward course?

✅ Before You Answer

• Verify you are applying Buys Ballot’s law for the Northern Hemisphere, not the Southern Hemisphere version • Make sure you clearly distinguish between the ship’s heading (east) and the wind direction (from dead ahead) before you ‘turn your back to the wind’ in your mind • Double-check your final relative bearing: is the low-pressure center ending up on your port side, starboard side, ahead, or astern when you translate your mental picture back to the original ship’s heading?