12-83190-01007-03 Rev. D Garmin GTN 725/750 Pilot’s GuideForewordGettingStartedAudio &Xpdr CtrlCom/NavFPLDirect-ToProcChartsWpt InfoMapTrafflcTerrainWeatherNearestServices/MusicUtilitiesSystemMessagesSymbolsAppendixIndex12.6.7 FIS-B SIGMETs and AIRMETsSIGMETs (SIGnificant METerological Information) and AIRMETs (AIRmen’sMETerological Information) are broadcast for potentially hazardous weatherconsidered of importance to aircraft. The update rate is approximately every 20minutes.Figure 12-103 FIS-B SIGMET/AIRMET Legend1. While viewing the FIS-B Weather menu, touch the SIGMET/AIRMET key.Surface WindsPresent PositionTurbulence LineIFR LineMountain ObscuredFigure 12-104 FIS-B SIGMETs and AIRMETs
