Using the surface analysis in illustration D049NG below, which wind speeds are reported at position A?

Correct Answer: Option B — 15 knots

Wind speeds on a surface analysis chart are indicated by the feathers on the wind arrow. Each long feather represents 10 knots, and each short feather represents 5 knots. At position A, the combination of one long and one short feather indicates a total wind speed of 15 knots.