Garmin 190-00336-00 Owner's Manual

Also see for GDL 30: Owner's manual Owner's manual

Garmin 190-00336-00 Owner's Manual Manual pdf 17 page image

GDL 30/30A Owner’s Manual 3FrontsThe Fronts feature displays the lines indicating the leading edge of an air mass that is replacing another. This feature also displays pressure centers. Pressure centers arerepresented by a large Red “L” for low pressure centers or a large Blue “H” for high pressure centers. Pressure centers represent an area where pressure is measured tobe either the highest or lowest relative to the surrounding area.Indicates a Low Pressure Center. A LowPressure Center is an area where themeasured pressure is lowest relative to thesurrounding area. Moving away from a LowPressure Center in any horizontal directionresults in increased pressure. Winds flowcounterclockwise around Low PressureCenters in North America.Indicates a High Pressure Center. Similarto a Low Pressure Center, a High PressureCenter is an area where the measured pressureis highest relative to the surrounding area.Moving away from a High Pressure Center inany horizontal direction results in decreasedpressure. Winds flow clockwise around HighPressure Centers in North America.Cold FrontWarm FrontStatonary FrontOccluded FrontDry Lnethe weather Features