Bruny Island - Mabel Bay Wind Stats

The figure describes how often and how strongly the wind blows from different directions through a typical August. The largest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with deep blue strongest. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Bruny Island - Mabel Bay, located 13 km away (8 miles). There are not enough 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 Bruny Island - Mabel Bay blows from the SSW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Bruny Island - Mabel Bay. By contrast, dominant spokes represent favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average August, the model suggests that winds are light enough for the sea to be glassy (light blue) about 9% of the time (3 days each August) and blows offshore 56% of the time (17 days in an average August). In a typical August winds stronger than >40kph (25mph) are expected on 3 days at Bruny Island - Mabel Bay

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