11-1190-01004-03 Rev. B Garmin GTN 625/635/650 Pilot’s GuideForewordGettingStartedXpdr CtrlCom/NavFPLDirect-ToProcWpt InfoMapTrafficTerrainWeatherNearestMusicUtilitiesSystemMessagesSymbolsAppendixIndex11 WeATheRXM Weather data are displayed by the Weather Data Link function whenan optional datalink is configured for weather or the StormScope® system isinstalled. The Wx Weather pages may be oriented to Track Up, Heading Up, orNorth Up.When a weather product is active on Map function or the Weather Data Linkfunction is selected, the age of the data is displayed on the screen. The age of theproduct is based on the time difference between when the data was assembledon the ground and the current GPS time. Weather products are refreshed atspecific intervals (shown in the Product Age column on the right side of theWeather page). When two weather products are installed, a key for each productwill be shown. Touch the key for the desired weather product. When a singleweather product is installed, touching the Weather key will go directly to theWeather page.Touch To UseStormScopeTouch To UseXM WeatherFigure 11-1 Weather Page11.1 XM Weather Products (Optional)If for any reason, a weather product is not refreshed within the 30, 60, 90,or 120 minute Expiration Time intervals, the data is considered expired and isremoved from the display. This ensures that the displayed data is consistent withwhat is currently being broadcast by XM Satellite Radio services. If more thanhalf of the expiration time has elapsed from the time the data is received, thecolor of the product age displayed changes to yellow.