Garmin 4000 Series Owner's Manual

Also see for GPSMAP 4000 Series: Configuration guide Quick reference guide Owner's manual Owner's manual Template manual

Contents

Garmin 4000 Series Owner's Manual Manual pdf 63 page image

GPSMAP 5000 Series Owner’s Manual 5uSInG Xm WX Weather and audIousInG XmUnderstanding Surface PressureThis feature shows pressure isobars and pressure centers. The isobars connect points of equalpressure. Pressure readings can help determine weather and wind conditions in an area. Highpressure areas are generally associated with fair weather. Low pressure areas are generally associatedwith clouds and the chance of precipitation. Isobars packed closely together show a strong pressuregradient. Strong pressure gradients are associated with areas of stronger winds.Pressure units are shown in Millibars (mb), Inches of Mercury (in), and Hectopascals (hPa).Understanding Water Temperature DataThe Water Temperature feature indicates the water’s surface temperature, as indicated by the legendon the left of the screen. The temperature breaks are indicated by isotherm lines.Viewing Fish ForecastingTo view areas that contain optimal weather conditions for specific species of fish, from the Homescreen touch Weather > Fishing > Menu > Fish species. Touch a species of fish. Shaded areasindicate optimal fishing areas.Viewing Visibility InformationTo view visibility information from the Home screen touch Weather > Visibility. Visibility is theforecast maximum horizontal distance that can be seen at the surface, as indicated by the legendon the left of the screen. Contour lines on the Visibility feature show the forecasted change insurface visibility. To view the forecasted visibility for another time period, touch Next Forecast.The forecasted visibility for the next 12 hours is shown. Continue to touch Next Forecast to viewforecasts for the next 24 and 36 hours.