Arinaga Wind Statistics, Autumn averages since 2006
The graph illustrates how commonly and how strongly the wind blows from different directions over a normal northern hemisphere autumn. The longest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with dark blue showing the strongest winds. It is based on 7252 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Arinaga, located 42 km away (26 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 prevailing wind at Arinaga blows from the NNW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Arinaga. On the other hand, 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 northern hemisphere autumn, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 10% of the time (9 days each northern hemisphere autumn) and blows offshore 15% of the time (1 days in an average northern hemisphere autumn). Over an average northern hemisphere autumn wind stronger than >40kph (25mph) was predicted for only a single days at Arinaga