12-22GTN 725/750 Pilot’s Guide 190-01007-03 Rev. CForewordGettingStartedAudio &Xpdr CtrlCom/NavFPLDirect-ToProcChartsWpt InfoMapTrafflcTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndex12.1.15 Weather ForecastThe Weather Forecast data provides Surface Analysis and City Forecastinformation for current and forecast weather conditions. The Surface Analysisforecast shows frontal lines indicating weather fronts and the direction they aremoving. High and Low pressure centers are noted with a large H or L. A ColdFront is a front where cold air replaces warm air. A blue line with blue triangleswill point in the direction of cold air flow. A Warm Front is where warm airreplaces cold air. A red line with red half moons will point in the direction ofthe warm air flow.1. While viewing the Data Link Weather menu, touch the WXForecast key. Touch a Wx Forecast symbol for more detail.Weather FrontSurface AnalysisWx Forecast DetailWx Forecast SymbolFigure 12-29 Surface2. Touch the desired time increment for the forecast period.Figure 12-30 Select Surface Forecast Time Period