North Jetty Wind Stats

The rose diagram illustrates 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 indicates the strength, with the strongest winds shown by deep blue. It is based on 2880 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to North Jetty, located 40 km away (25 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 North Jetty blows from the ENE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at North Jetty. On the other hand, 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 (pale blue) about 5% of the time (2 days each April) and blows offshore 17% of the time (4 days in an average April). During a typical April wind stronger than >40kph (25mph) was forecast for only a single days at North Jetty

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