Mangahume Wind Stats

The rose diagram describes how frequently and how strongly the wind blows from different directions over a normal July. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with dark blue strongest. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Mangahume, located 37 km away (23 miles). There are too few 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 dominant wind at Mangahume blows from the WSW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Mangahume. On the other hand, dominant spokes represent 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 5% of the time (2 days each July) and blows offshore 20% of the time (6 days in an average July). Over an average July winds stronger than >40kph (25mph) are expected on 4 days at Mangahume

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