General Navigation USCG Question #1259 (Set 40)

How is an occluded front represented on a weather map?

Official USCG Answer & Rule Citation

Correct Answer: Option D — purple line

Standard meteorological symbols dictate that an occluded front, formed when a fast-moving cold front overtakes a warm front, is universally designated on weather maps by a solid purple line featuring alternating triangles and semicircles pointing in the direction of movement.

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