Garmin XM WX - Manual (Page 10)

6 XM WX Satellite Weather ® and XM ® Satellite Radio Supplement
XM WX Satellite Weather and XM Satellite Radio
Wave Height, Wave Period, and Wave Direction
Wave heights for an area appear as variations in color. Different colors indicate different wave heights
➊
, as
shown in the legend
➋
on the left of the screen.
The wave period indicates the time (in seconds) between successive waves. Wave period lines
➌
indicate areas
that have the same wave period.
Wave directions appear on the chart using red arrows
➍
. The direction of each arrow pointer indicates the
direction in which a wave is moving.
➋
➌
➊
➍
Viewing Forecast Sea Conditions Information for Another Time Period
1. From the Home screen, select Weather > Sea Conditions.
2. Complete an action:
• Select Next Forecast to view the forecast visibility for the next 12 hours, and select Next Forecast
again to view forecasts for the next 24 and 36 hours, in 12-hour increments.
• Select Previous Forecast to view the forecast visibility for the previous 12 hours, and select Previous
Forecast again to view forecasts for the previous 24 and 36 hours, in 12-hour increments.