XM WX Weather Features

Sea Surface

The Sea Surface category contains Temperature, Wave Height, Wave Period, and Wave Direction. Each feature can be turned on or off, or set to display at a selected zoom range. For more information on configuring units of measure for Temperature and Wave Height, see the chartplotter Owner’s Manual.

Temperature

The Temperature feature displays the water surface temperature. The temperature breaks are indicated by isobars. Temperature can be displayed in degrees Fahrenheit (°F) or in degrees Celcius (°C).

Wave Height

The Wave Height feature displays wave heights. The wave heights for an area are separated by isobars. Wave Height can be displayed in feet (ft.) or meters (m).

Temperature Feature

Wave Height Feature

 

 

 

 

 

 

 

 

 

GDL 30A Owner’s Manual