Barra do Una Wind Stats

This image illustrates how commonly and how strongly the wind blows from different directions over a normal November. The largest 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 deep blue. It is based on 3347 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Barra do Una, located 9 km away (6 miles). There are not enough 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 Barra do Una blows from the SE. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Barra do Una. Converseley, dominant spokes illustrate 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 November, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 22% of the time (7 days each November) and blows offshore 47% of the time (14 days in an average November). Over an average November winds exceeding >40kph (25mph) are not expected, but 1 have winds on the range 30-40 (19-25) at Barra do Una

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