Garmin GPSMAP 5215 Owner's Manual - Page 66
Viewing Sea Conditions, Understanding Fronts, Forecasts
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Using XM WX Weather and Audio Understanding Fronts The Fronts show lines indicating the leading edge of an air mass. This feature also shows pressure centers. Cold Front Warm Front Stationary Front Occluded Front Trough 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 lowpressure 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. Understanding City Forecasts City forecasts appear as standard weather symbols. The forecast is viewed in 12-hour increments for the next 48 hours. Viewing Sea Conditions Sea Conditions provide surface conditions including winds, wave height, wave period, and wave direction. To view sea conditions, from the Home screen, touch Weather > Sea Conditions. 62 GPSMAP 5000 Series Owner's Manual Using XM