Coast Guard Exams
Question 1169Navigation General70% to pass

The prevailing westerlies of the Southern Hemisphere blow 18 - 30 knots _______________.

AI Explanation
The correct answer is C) all year long. The prevailing westerlies are a dominant wind pattern in the Southern Hemisphere that blows from the west to the east at latitudes between 30 and 60 degrees South. These winds are present and relatively consistent in strength throughout the year, typically ranging from 18 to 30 knots. They are not limited to a specific season, but rather are a persistent feature of the Southern Hemisphere's atmospheric circulation. The other answer choices are incorrect because the prevailing westerlies are not exclusive to the winter months (A), the summer months (B), or the spring (D) - they blow all year long (C).

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