The figure describes how commonly and how strongly the wind blows from different directions through a typical April. The longest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with dark blue strongest. It is based on 1630 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Boneyards, located 36 km away (22 miles). There are insufficient recording stations world wide to use actual wind data. Without question some coastal places have very localized wind effects that would not be predicted by NWW3.
According to the model, the dominant wind at Boneyards blows from the NNW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Boneyards. On the other hand, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average April, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 3% of the time (1 days each April) and blows offshore just 10% of the time (3 days in an average April). In a typical April winds exceeding >40kph (25mph) are not expected, but 5 have winds on the range 30-40 (19-25) at Boneyards
IMPORTANT: Beta version feature! Swell heights are open water values from NWW3. There is no attempt to model near-shore effects. Coastal wave heights will generally be less, especially if the break does not have unobstructed exposure to the open ocean.