Chokusen Wind Stats

The rose diagram shows 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 implies the strength, with dark blue showing the strongest winds. It is based on 3360 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Chokusen, located 15 km away (9 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 prevailing wind at Chokusen blows from the ESE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Chokusen. By contrast, dominant spokes represent favoured directions, and the more the darkest shade of 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 12% of the time (4 days each April) and blows offshore 41% of the time (12 days in an average April). During a typical April wind stronger than >40kph (25mph) was expected for only a single days at Chokusen

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