Rosa Wind Stats

This picture illustrates how often and how strongly the wind blows from different directions over a normal August. The longest spokes point in the directions the wind most commonly blows from and the shade of blue implies 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 Rosa, located 20 km away (12 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 Rosa blows from the SE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Rosa. 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 August, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 9% of the time (3 days each August) and blows offshore 23% of the time (7 days in an average August). Over an average August wind stronger than >40kph (25mph) was expected for only a single days at Rosa

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