4-53190-01102-02 Rev. B Garmin G500 Pilot’s GuideForewordSec 1SystemSec 2PFDSec 3MFDSec 4HazardAvoidanceSec 5AdditionalFeaturesSec 6Annun.& AlertsSec 7SymbolsSec 8Glossary Appendix AAppendix BIndex4.7.15 Surface Analysis and City ForecastNOTE: Surface Analysis and City Forecast data are displayed only withinthe installed Aviation Database service area.Surface Analysis and City Forecast information is available for current andforecast weather conditions. Forecasts are available for intervals of 12, 24, 36,and 48 hours by pressing the SRFC TIME soft key or in the Page Menu WeatherSetup options.When enabled, the Surface Analysis forecast shows frontal lines indicat-ing weather fronts and the direction they are moving. High and Low pressurecenters are noted with a large H or L. The Forecast Time menu item will stepthrough the intervals manually.Figure 4-40 XM Weather - Surface Analysis and City ForecastA Cold Front is a front where cold air replaces warm air. A blue line withblue triangles that point in the direction of the cold air flow.Figure 4-41 XM Weather - Cold FrontA Warm Front is where warm air replaces cold air. An orange line withorange half moons that point in the direction of the warm air flow.Figure 4-42 XM Weather - Warm Front
