Raymarine A series, Installation And Operation Instructions Manual

Page: 386 / 464

Storm tracking symbols
The weather application uses a range of symbols to
represent different types of storm tracks. The storm
tracking function enables you to monitor significant
storms in the area.
Examples of significant storms include tropical
disturbances, depressions, storms and cyclones,
hurricanes, typhoons, and super typhoons.
The weather map displays the track that the storm
has taken, its current and forecasted position, the
wind radii (current position only), direction, and
speed of travel.
Storm tracks are highlighted on the weather map in
the form of symbols, as shown below.
Historical
(grey) Current
(red) Forecast
(orange)
Description
Hurricane
(Category
1–5)
Tropical
storm
Tropical
disturbance,
tropical
depression
When a symbol is selected, additional storm
information can be accessed by the context menu:
• Storm's name and type.
• Date and time.
• Position, direction and speed.
• Pressure and maximum wind speed and gusts.
Surface pressure symbols
The weather application uses a range of symbols to
represent different surface pressure conditions.
Symbol Description
High / low pressure (blue and
red)
Warm front (red)
Cold front (blue)
Occluded front (purple)
Stationary front (red-blue)
Trough (brown)
Squall line (red)
Symbol Description
Dry line (red)
Isobars (grey)
Surface observation station symbols
The weather application uses a range of symbols
to represent different types of surface observation
station.
Symbol Description
Buoy station
C-MAN (Coastal-marine
automated network)
WSI (Weather services
international)
NWS (National weather
service)
Wind speed symbols
The weather application uses a range of symbols to
represent different wind speeds.
Symbol Speed Symbol Speed Symbol Speed
3–7 kts 8–12
kts 13–17
kts
18–22
kts 23–27
kts 28–32
kts
33–37
kts 38–42
kts 43–47
kts
48–52
kts 53–57
kts 58–62
kts
63–67
kts 68–72
kts 73–77
kts
78–82
kts 83–87
kts 88–92
kts
93–97
kts 98–102
kts
etc.
386 a Series / c Series / e Series