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Viewing Sea Conditions
The sea conditions screen shows information about surface conditions, including winds, wave
height, wave period, and wave direction.
From the Home screen, select
Surface Winds
Surface winds appear on the sea conditions screen using wind barbs that indicate the direction from
which the wind is blowing. A wind barb is a circle with a tail. The flag attached to the tail of the
wind barb indicates the wind speed.
Wind Barb
Wind Speed
Calm
5 knots
10 knots
Wave Height, Period, and Direction
Wave heights for an area appear as variations in color. Different colors indicate different wave
heights, as shown in the legend on the left of the screen. Wave height lines indicate areas that have
the same wave height.
The wave period indicates the time (in seconds) between successive waves.
Wave directions appear on the map using red arrows. The direction of each arrow pointer indicates
the direction in which a wave is moving.
Wave height
legend
Wave height
shading
XM WX Satellite Weather
Weather
>
Wind Direction Wind Barb
and XM
Satellite Radio Supplement
®
®
XM WX Satellite Weather and XM Satellite Radio
Sea
Conditions.
Wind Speed
Wind Direction
15 knots
20 knots
50 knots
Wave height
lines
Wave direction
arrows