Itaipu Wind Stats

The graph illustrates how frequently and how strongly the wind blows from different directions through a typical June. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with the strongest winds shown by deep blue. It is based on 3506 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Itaipu, located 39 km away (24 miles). There are not enough 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 dominant wind at Itaipu blows from the SSE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Itaipu. Converseley, dominant spokes show favoured directions, and the more the darkest shade of blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average June, the model suggests that winds are light enough for the sea to be glassy (light blue) about 26% of the time (8 days each June) and blows offshore 49% of the time (0 days in an average June). During a typical June winds exceeding >40kph (25mph) are not expected, but 0 have winds on the range 30-40 (19-25) at Itaipu

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