Aligator Rock Wind Statistics, Autumn averages since 2006
The rose diagram illustrates how often and how strongly the wind blows from different directions through a typical northern hemisphere autumn. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with deep blue strongest. It is based on 7252 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Aligator Rock, located 42 km away (26 miles). There are not enough recording stations world wide to use actual wind data. No doubt some coastal places have very localized wind effects that would not be predicted by NWW3.
According to the model, the dominant wind at Aligator Rock 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 Aligator Rock. By contrast, dominant spokes illustrate favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average northern hemisphere autumn, the model suggests that winds are light enough for the sea to be glassy (light blue) about 6% of the time (5 days each northern hemisphere autumn) and blows offshore 47% of the time (44 days in an average northern hemisphere autumn). In a typical northern hemisphere autumn wind stronger than >40kph (25mph) was expected for only a single days at Aligator Rock
IMPORTANT: Beta version feature! Swell heights are open water values from NWW3. There is no attempt to model near-shore effects. Coastal wave heights will generally be less, especially if the break does not have unobstructed exposure to the open ocean.