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56 GPSMAP 400/500 Series Owner’s Manual
Using XM WX Weather and Audio
If Weather is set to Off, none of the weather parameters will be
visible on the chart.
To view weather information on a Perspective 3D chart or a
Mariner’s Eye 3D chart:
Press Menu > Weather Radar > On.
Viewing NEXRAD Precipitation Information
From the Home screen, select Information > Weather >
Precipitation.
Precipitation shows NEXRAD radar, storm cells, lighting strikes,
and hurricane warnings. NEXRAD shows very light rain and
snow up to strong thunderstorms in varying shades and colors.
The time stamp in the upper-left corner of the screen indicates the
elapsed time since the National Weather Service last updated the
information. You can view NEXRAD information as an image
of the latest update, or as an animated loop of the latest updates.
NEXRAD is shown independently or with a variety of other weather
information.
From the Home screen, select Information > Weather >
Precipitation.