The figure illustrates how frequently and how strongly the wind blows from different directions through a typical April. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with dark blue strongest. It is based on 1638 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Lacerations (Nusa Lembongan), located 36 km away (22 miles). There are insufficient recording stations world wide to use actual wind data. No doubt some coastal places have very localized wind effects that would not be predicted by NWW3.
According to the model, the prevailing wind at Lacerations (Nusa Lembongan) blows from the SSW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Lacerations (Nusa Lembongan). By contrast, 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 (light blue) about 28% of the time (8 days each April) and blows offshore 86% of the time (6 days in an average April). In a typical April winds exceeding >40kph (25mph) are not expected, but 0 have winds on the range 30-40 (19-25) at Lacerations (Nusa Lembongan)
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.