Garmin GXM 30A - Manual (Page 33)

GXM 30A XM Radio Smart Antenna Owner’s Manual 
Freezing Level
Shows contours for the lowest forecast altitude where icing
conditions are likely to occur.
Forecast
Forecast displays Fronts, High and Low Pressure Centers,
and City Conditions. The forecast can be viewed in 12- hour
increments for the next 48 hours.
Freezing Level Contours
Forecast map
XM W
eather
f
eatures
> f
reezIng
l
evel and
f
orecast
Sunny
Partly Cloudy
Cloudy
Mostly Cloudy
Thunderstorms
Rain
Snow
Freezing Rain
Windy
Haze
Very Cold
Foggy
Very Hot
Forecast Legend