Postollonec Wind Stats

The rose diagram illustrates how often and how strongly the wind blows from different directions over a normal June. The longest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with the strongest winds shown by the darkest shade of blue. It is based on 3506 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Postollonec, located 48 km away (30 miles). There are insufficient recording stations world wide to use actual wind data. Without question some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the prevailing wind at Postollonec blows from the W. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Postollonec. By contrast, dominant spokes show favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical June, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 10% of the time (3 days each June) and blows offshore 44% of the time (0 days in an average June). Over an average June winds stronger than >40kph (25mph) are expected on 2 days at Postollonec

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