Pontal Wind Stats

This picture describes how commonly and how strongly the wind blows from different directions over a normal April. The longest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with the darkest shade of blue strongest. It is based on 3360 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Pontal, located 37 km away (23 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 Pontal blows from the NNE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Pontal. 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 April, the model suggests that winds are light enough for the sea to be glassy (light blue) about 6% of the time (2 days each April) and blows offshore 8% of the time (2 days in an average April). Over an average April winds exceeding >40kph (25mph) are not expected, but 3 have winds on the range 30-40 (19-25) at Pontal

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