Arm out of the window With respect and after 30 years of flying to offshore destinations including boats and barges, wind lanes almost never appear in neat straight white lines as depicted in the link. Mostly the sea state doesn't allow for such straight lines to form and the only clearly visible clue is the line formed by the oncoming waves at right angles to the wind.
I have mostly looked carefully without success to see these straight white lines, but almost invariably was obliged to resort to the waves from which such lines or lanes might arise.
In the North Sea the wind strength needs to blow from a constant direction for many hours and get above about 30 knots before such lanes become visible. I guess that the person asking about Dalton computers wouldn't be operating in such strong winds, so the wave lines would be an easier clue to observe.
I accept that wave lines aren't actual wind lanes, but like the lanes they are a consequence of the wind and seem more reliable as an indication. Hopefully he will see this distinction for himself.