Garmin GPSMAP 800 Series Owner's Manual - Page 37

Browse online or download pdf Owner's Manual for Avionics Display Garmin GPSMAP 800 Series. Garmin GPSMAP 800 Series 46 pages. Flat-mount kit
Also for Garmin GPSMAP 800 Series: Quick Start Manual (17 pages), Pilot's Manual Addendum (22 pages), Owner's Manual (40 pages), Quick Start Manual (4 pages), Installation Instructions Manual (6 pages), Operator's Manual (32 pages), Installation Instructions Manual (34 pages), Installation Instructions Manual (6 pages)

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Viewing Fishing Information

The weather Fishing chart shows present water temperature,

present surface pressure conditions, and fishing forecasts.

Select Weather > Fishing.

Surface Pressure and Water Temperature Data

Surface-pressure information appears as pressure isobars and

pressure centers. Isobars connect points of equal pressure.

Pressure readings can help to determine weather and wind

conditions. High-pressure areas are generally associated with

fair weather. Low-pressure areas are generally associated with

clouds and the chance of precipitation. Isobars packed closely

together show a strong pressure gradient. Strong pressure

gradients are associated with areas of stronger winds.

Pressure units are shown in millibars (mb), inches of Mercury

(inHg), or hectopascals (hPa).

Colored shading indicates the surface temperature of the water,

as shown in the legend in the corner of the display.

Forecasting Fish Locations

You can show areas that contain optimal weather conditions for

specific species of fish.

NOTE: This feature is not available on all devices and in all

subscriptions.

From the weather Fishing chart, select Weather > Fishing >

MENU > Fish Species.

Select a species of fish.

Select On.

Repeat steps 2 and 3 to show areas with optimal weather

conditions for additional species of fish.

Shaded areas indicate optimal fishing areas. If you have

selected more than one species of fish, you can select a

shaded area to view the fish species that are included in the

shaded area.

Changing the Sea Surface Temperature Color Range

You can change the color range dynamically to view higher

resolution sea surface temperature readings.

From the weather fishing chart, select MENU > Sea

Temperature.

Select an option:

• To allow the chartplotter to adjust the temperature range

automatically, select Auto Configure.

The chartplotter automatically finds the lower and upper

limits for the current screen, and updates the temperature-

color scale.

• To enter the lower and upper limits for the temperature

range, select Lower Limit or Upper Limit, and enter the

lower or upper limit.

Visibility Information

Visibility is the forecast maximum horizontal distance that can be

seen at the surface, as shown in the legend on the left of the

screen. Variations in the visibility shading show the forecast

change in surface visibility.

NOTE: This feature is not available on all devices and in all

subscriptions.

Select Weather > Visibility.

Viewing Forecast Visibility Information for Another

Time Period

Select Weather > Visibility.

Select an option:

• To view the visibility forecast for the next 36 hours, in 12-

hour increments, select Next Forecast or multiple times.

SiriusXM Weather

• To view the visibility forecast for the previous 36 hours, in

12-hour increments, select Previous Forecast or

multiple times.

Viewing Buoy Reports

Report readings are taken from buoys and coastal observation

stations. These readings are used to determine air temperature,

dew point, water temperature, tide, wave height and period,

wind direction and speed, visibility, and barometric pressure.

From a weather chart, select .

Select Review > Buoy.

Review does not appear if the cursor is not near an object. If

the cursor is near only one object, the name of the buoy

appears.

Viewing Local Weather Information near a Buoy

You can select an area near a buoy to view forecast information.

From a weather chart, select a location on the chart.

Select Local Weather.

Select an option:

• To view present weather conditions from a local weather

service, select Curent Cond..

• To view a local weather forecast, select Forecast.

• To view surface wind and barometric pressure information,

select Sea Surface.

• To view wind and wave information, select Marine

Bulletin.

Creating a Waypoint on a Weather Chart

From a weather chart, select a location.

Select New Waypoint.

Weather Overlay

The weather overlay superimposes weather and weather-related

information on the Navigation chart, the Fishing chart, and the

Perspective 3D chart view. The Navigation chart and the Fishing

chart can show weather radar, height of cloud tops, lightning,

weather buoys, county warnings, and hurricane warnings. The

Perspective 3D chart view can show weather radar.

Weather overlay settings configured for use on one chart are not

applied to another chart. The weather overlay settings for each

chart must be configured separately.

NOTE: The offshore Fishing chart is available with premium

charts, in some areas.

Turning On the Weather Overlay on a Chart

From the Navigation chart or Fishing chart, select MENU >

Chart Setup > Weather > Weather > On.

Weather Overlay Settings on the Navigation Chart

From the Navigation chart, select MENU > Chart Setup >

Weather.

Weather: Turns on and off the weather overlay.

Precipitation: Shows precipitation data.

Cloud Cover: Shows cloud cover data.

Buoy Data: Shows weather buoys.

Legend: Shows the weather legend.

Weather Overlay Settings on the Fishing Chart

From the Fishing chart, select MENU > Chart Setup > Weather.

Precipitation: Shows precipitation radar.

Sea Temperature: Shows sea temperature data.

Buoy Data: Shows weather buoys.

Legend: Shows the weather legend.