Onemana Wind Stats

This picture describes how frequently and how strongly the wind blows from different directions through a typical April. The largest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with dark blue showing the strongest winds. It is based on 2880 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Onemana, located 20 km away (12 miles). There are too few 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 Onemana blows from the ENE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Onemana. By contrast, dominant spokes show favoured directions, and the more dark 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 13% of the time (4 days each April) and blows offshore 44% of the time (4 days in an average April). In a typical April wind stronger than >40kph (25mph) was forecast for only a single days at Onemana

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