Garmin G500 Pilot's Manual page 193

NOTE: Product age for individual reports of XM AIRMETs, SIGMETs, City
Forecasts, County Warnings, Cell Movement and TFRs are not provided
by XM Weather Service.
Product age indication for XM Icing Potential and Turbulence is not
included on the weather map. The valid time for these products is
displayed on the weather map in place of the generation time.
The valid time indication for XM Freezing Level, Winds Aloft and Canada
Winds Aloft is not displayed. Instead, the generation time for these is
displayed.
190-01102-02 Rev. E
Symbol
Flood
Severe Thunderstorm
Tornado
Sunny
Part Sun
Cloudy
Rainy
T-Storm
Snow
Windy
Foggy
Haze
High/Low Temp
Table 4-16 Weather Symbols
Garmin G500 Pilot's Guide
Description
4-35