Garmin 4008 Manual Do Proprietário

m

arIne

 n

etWork

: u

SInG

 Xm

When the National Weather Service issues a weather warning for a county, the county is highlighted 

with the color corresponding to the warning. To view information about the warning, select the 

county with the pointer by using the ROCKER.

 

Forecasts show the weather conditions including fronts and precipitation. To view the forecast for 

another time period, select 

 > 

. The forecasted weather for the next 12 hours is 

displayed. Continue to select 

 to view forecasts for the next 24, 36, and 48 hours. To 

view forecast information for another location, use the pointer to pan the map until the location is 

displayed.

The Fronts show lines indicating the leading edge of an air mass. This feature also shows pressure 

centers. Pressure centers are represented 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 to be 

either the highest or lowest relative to the surrounding area.

Indicates a Low Pressure Center. A Low Pressure Center is an area where the measured 

pressure is lowest relative to the surrounding area. Moving away from a Low Pressure 

Center in any horizontal direction results in increased pressure. Winds flow 

counterclockwise around Low Pressure Centers in North America.
Indicates a High Pressure Center. A High Pressure Center is an area where the measured 

pressure is highest relative to the surrounding area. Moving away from a High Pressure 

Center in any horizontal direction results in decreased pressure. Winds flow clockwise 

around High Pressure Centers in North America.