Operation Manual

When color coding is selected, the SST color bar will be shown on the left side of the display.
You can define which temperature range that shall be color coded as described later in this
section.
Wave indication
Sirius weather option.
Colors are used to indicate forecasted wave height. Dark red indicate the highest waves,
while blue are used for the lowest.
You can define which height range shall be color coded as described later in this section.
Wind barbs
The rotation of the wind barbs indicate the relative wind direction, with the tail showing the
direction the wind is coming from. In the graphics below the wind comes f rom from
northwest.
Wind speed is indicated by a combination of small and large barbs at the end of the wind
tail.
Zero knots / Indeterminate wind direction
Small barb = 5 knots
Large barb = 10 knots
Arrow barb = 50 knots
If a combination of 5 and 10 knot barbs are shown on a tail then these will need to be added
together to give you the total wind speed. The example below shows 3 x large barb + 1 x
small barb = 35 knots, and 60 knots indicated with 1 x arrow barb + 1 x large barb.
Wind speed: 35 knots Wind speed: 60 knots
Weather icons
Several weather icons are available to show current or predicted weather conditions. You can
tap an icon to display detailed weather information.
Icon Description
City forecast
Surface observation
Tropical storm tracking; past (grey) - present
(red) - future (yellow)
Hurricane (category 1-5) tracking; past (grey)
- present (red) - future (yellow)
Tropical disturbance/depression tracking;
past (grey) - present (red) - future (yellow)
Storm attributes
Lightning
Watch box location and warning
Marine zone location
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Weather| NSS evo2 Operator Manual