Sirius View Options - Lowrance HDS Gen3 Operator's Manual

Large barb = 10 knots
Arrow barb = 50 knots
If a combination of 5 and 10 knot barbs are shown on a tail, then
add them 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
Showing weather details
If pop-up is enabled, you can select a weather icon to display the
identity of the observation. If you select the pop-up, detailed
information about the observation is displayed. You can also display
the detailed information from the menu when the weather icon is
selected.

Sirius view options

SiriusXM weather | HDS Gen3 Operator Manual
Wind speed: 60 knots
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