Ruhba Phail (Lewis) Wind Stats

This picture describes how frequently and how strongly the wind blows from different directions over a normal October. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the strongest winds shown by the darkest shade of blue. It is based on 3471 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Ruhba Phail (Lewis), located 22 km away (14 miles). There are insufficient 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 prevailing wind at Ruhba Phail (Lewis) blows from the WNW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Ruhba Phail (Lewis). Converseley, dominant spokes represent favoured directions, and the more the darkest shade of blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical October, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 6% of the time (2 days each October) and blows offshore 27% of the time (8 days in an average October). Over an average October winds stronger than >40kph (25mph) are expected on 6 days at Ruhba Phail (Lewis)

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