Surface Winds

Surface wind vectors appear on the Sea Conditions chart using wind barbs that indicate the direction from which the wind is blowing. A wind barb is a circle with a tail. The line or flag attached to the tail of the wind barb indicates the wind speed. A short line represents 5 knots, a long line represents 10 knots, and triangle represents 50 knots.

Wind Barb

Wind Speed

Wind barb

Calm

Wind barb

5 knots

Wind barb

10 knots

Wind barb

15 knots

Wind barb

20 knots

Wind barb

50 knots

Wind barb

65 knots

GUID-EDAF2434-F5D2-4388-8295-1E0403274173 v18
January 2024