Port Bharrapol (Tiree) Wind Stats

The rose diagram shows how frequently and how strongly the wind blows from different directions over a normal November. The longest 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 3347 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Port Bharrapol (Tiree), located 3 km away (2 miles). There are too few 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 Port Bharrapol (Tiree) blows from the WSW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Port Bharrapol (Tiree). 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 November, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 3% of the time (1 days each November) and blows offshore just 18% of the time (6 days in an average November). Over an average November winds stronger than >40kph (25mph) are expected on 10 days at Port Bharrapol (Tiree)

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