Question 1273Navigation General

70% to pass

Squall lines with an almost unbroken line of threatening dark clouds and sharp changes in wind direction, generally precede a(n) _______________.

A occluded front
B slow-moving warm front
C stationary front
D fast-moving cold front
AI Explanation

The correct answer is D) fast-moving cold front. Squall lines with an almost unbroken line of threatening dark clouds and sharp changes in wind direction typically precede the passage of a fast-moving cold front. As the cold front approaches, the changing wind direction and rapidly deteriorating weather conditions are hallmarks of this type of frontal system. In contrast, occluded fronts, slow-moving warm fronts, and stationary fronts do not exhibit the same dramatic changes in wind and cloud cover that are associated with fast-moving cold fronts.

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