Garmin GXM 30A - Manual (Page 22)

GXM 30A XM Radio Smart Antenna Owner’s Manual
Visibility
Visibility is the forecast maximum horizontal distance that can be seen at the surface. Contour lines on the Visibility feature show
the forecasted change in surface visibility. In the example below, visibility ranges from 1 mile to 4.5 miles.
Visibility Contour Lines
This image displays NEXRAD Radar, Satellite
Mosaic, and Visibility. Displaying multiple
features may help to provide a clearer picture
of the weather conditions in the area.
XM W
eather
f
eatures
> v
IsIbIlIty