The Interpretation of Wind Barb Symbols

Interpretation of Wind Barb Symbols

The highest wind speeds were found at about 225 mb, from the west-southwest at about _____ knots (two flags, three long feathers, and one short feather on the wind shaft). a.100 b.115 c.135 d.155

Final answer: Using wind barb symbols, two flags and four feathers on the wind shaft signify a wind speed of 135 knots; hence the correct answer is 135 knots (c).

Explanation: The student's question concerns the interpretation of wind barb symbols used to indicate wind speed and direction on weather maps. The wind speed in question can be determined using the symbolic representation where one full feather (or barb) represents 10 knots and a half feather represents 5 knots. In this case, the wind barb described has two flags (each flag representing 50 knots), three long feathers (each representing 10 knots), and one short feather (representing 5 knots). The total wind speed is thus 50 + 50 + 10 + 10 + 10 + 5 = 135 knots. Therefore, the correct answer is c.135.

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