Garmin GI 275 Pilot's Manual page 177

Freezing Levels (SiriusXM)
The Freezing Level weather product shows the color-coded contour lines for the altitude and
location at which the freezing level isotherm is found. When no data is displayed for a given
altitude, the data for that altitude has not been received, or is out of date and has been removed
from the display. New data appears when it becomes available.
Freezing Level
Altitude
190-02246-01 Rev. L
Cell Movement - 'SXM WX' Page
Freezing Levels - 'SXM WX' Page
Garmin GI 275 Pilot's Guide
Hazard Avoidance
Direction of
Movement
Storm Cell
Color Coded
Contour Line
for Each
Freezing Level
155