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Viewing fishing information – Garmin GPSMAP 545s User Manual

Page 71

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GPSMAP 400/500 Series Owner’s Manual

65

Using XM WX Weather and Audio

Understanding City Forecasts

City forecasts appear as standard weather symbols. The forecast is

viewed in 12-hour increments for the next 48 hours.

Viewing Fishing Information

The Fishing view contains current water temperature, surface

pressure conditions, and fishing forecasts.
From the Home screen, select

information

>

weather > fishing

.

Understanding Surface Pressure

This feature shows pressure isobars and pressure centers. The

isobars connect points of equal pressure. Pressure readings can help

determine weather and wind conditions in an area. 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 (in),

and Hectopascals (hPa).

Understanding Water Temperature Data

The Water Temperature feature indicates the water’s surface

temperature, as indicated by the legend on the left of the screen. The

temperature breaks are indicated by isotherm lines.