40 GPSMAP 392/398/492/498 Owner’s ManualM AIN MENU > TIDE TABTide TabUse the Tide tab to view tide and current information. The Tide tabcontains two sub tabs: Tide and Current.Tide TabStationnameDateTidechartEventtimesTide Sub TabThe Tide sub tab contains a graphical chart that shows Tide Stationinformation in a 24-hour span starting at midnight. You can choosefrom different dates and more than 3,000 Tide Stations around theU.S.A. coastline, Alaska, Hawaii, western Canada, and several ofthe Caribbean islands. The top of the Tide sub tab shows the TideStation, the date, and the distance and bearing to the Tide Stationfrom your location.The bottom of the Tide chart shows a 24-hour block of local timefor your location. Daytime (yellow bar) and nighttime (blue bar)at the Tide Station are shown across the time scale, with the timeprogressing from left to right (sunrise and sunset information mightnot be available for some Tide Stations). The solid, light verticallines are in 4-hour increments, and the light, dotted vertical linesare in 1-hour increments. A solid, vertical line (with the localtime at the top) indicates the tide height corresponding to the timeshown in the local time box.Station time DayNightMLLWCurrenttime barMax. levelMin. levelCurrent tideheight barHigh tidecurveLow tide curveThe Tide curve is shown as a shaded area, where higher tides aretaller (blue) and lower tides are shorter (red). The solid, horizontalline indicates the tide height. The figure to the left of the line showsthe present tide level. The Mean Lower Low Water (MLLW)appears as a solid, horizontal line near the bottom of the chart(this line appears only if the tide height range is zero or below).