Thompsons Bay Wind Stats

This picture describes how commonly and how strongly the wind blows from different directions over a normal July. The largest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the darkest shade of blue strongest. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Thompsons Bay, located 27 km away (17 miles). There are insufficient recording stations world wide to use actual wind data. Invevitably some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the most common wind at Thompsons Bay blows from the SE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Thompsons Bay. 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. During a typical July, 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 July) and blows offshore 31% of the time (2 days in an average July). Over an average July winds stronger than >40kph (25mph) are expected on 2 days at Thompsons Bay

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