Alibaba Wind Statistics, Winter averages since 2006
The rose diagram illustrates how often and how strongly the wind blows from different directions through a typical northern hemisphere winter. The longest 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 6931 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Alibaba, located 25 km away (16 miles). There are too few 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 Alibaba blows from the NW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Alibaba. On the other hand, 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 winter, the model suggests that winds are light enough for the sea to be glassy (light blue) about 1.6% of the time (1 days each northern hemisphere winter) and blows offshore just 18% of the time (15 days in an average northern hemisphere winter). During a typical northern hemisphere winter wind stronger than >40kph (25mph) was predicted for only a single days at Alibaba
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.