Blowhole Wind Stats

The rose diagram illustrates how frequently and how strongly the wind blows from different directions over a normal May. The largest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with the darkest shade of blue strongest. It is based on 3440 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Blowhole, located 31 km away (19 miles). There are too few 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 dominant wind at Blowhole blows from the NE. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Blowhole. Converseley, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical May, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 11% of the time (3 days each May) and blows offshore 35% of the time (2 days in an average May). Over an average May winds stronger than >40kph (25mph) are expected on 2 days at Blowhole

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