What is the symbol for 10 knots wind speed on a SIGWX chart?

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Multiple Choice

What is the symbol for 10 knots wind speed on a SIGWX chart?

Explanation:
Wind barbs on SIGWX charts encode wind speed by the number of feathers on the barb. Each full feather represents 10 knots, so a single feather indicates 10 knots. A pennant (triangle) on the barb would indicate 50 knots, circles aren’t used for this wind-speed coding, and the term bars isn’t the standard label for the 10-knot increment here.

Wind barbs on SIGWX charts encode wind speed by the number of feathers on the barb. Each full feather represents 10 knots, so a single feather indicates 10 knots. A pennant (triangle) on the barb would indicate 50 knots, circles aren’t used for this wind-speed coding, and the term bars isn’t the standard label for the 10-knot increment here.

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