Operation Manual

5
3.1 Showing/hiding weather data layers
You can choose which data to show or hide on the display as below:
1. Press the WX DISP soft key to show the weather display window.
WEATHER DISPLAY
NOWRAD (USA RADAR)
STORM CAST
SEA SURFACE TEMP
CANRAD (CANADIAN RADAR)
STORM TRACKS
LIGHTNING
OBSERVATION STATIONS
CITY FORECAST ICONS
WIND
WAVES
SURFACE PRESSURE
ALERT BOX
MARINE ZONE
COLOR SCALE
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
2. Rotate the ENTER knob or trackball to choose the weather item that you
want to show or hide.
3. Press the ENTER knob or ON/OFF soft key to choose on or off as
appropriate.
4. Repeat steps 2 and 3 to show or hide other items.
5. Press the RETURN soft key to close the window.
3.2 Weather icons descriptions
NOWRAD (USA RADAR)
NOWRAD shows the type and level of precipitation. The “Level” number shown
below is a figure of reflectivity from a weather radar. The larger the level number,
the stronger the precipitation.
Color Precipitation type Level
Light green Rain 15-19 dBz
Medium green Rain 20-29 dBz
Dark green Rain 30-39 dBz
Yellow Rain 40-44 dBz
Orange Rain 45-49 dBz
Light red Rain 50-54 dBz
Dark red Rain over 55 dBz
Light blue Snow 5-19 dBz
Dark blue Snow over 20 dBz
Light pink Mixed 5-19 dBz
Dark pink Mixed over 20 dBz