Statistiques de Vent de Aberaeron, moyennes sur Mars depuis 2006
The figure describes how commonly and how strongly the wind blows from different directions over a normal March. The largest 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 2220 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Aberaeron, located 32 km away (20 miles). There are too few 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 Aberaeron blows from the WSW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Aberaeron. By contrast, dominant spokes represent 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 March, the model suggests that winds are light enough for the sea to be glassy (light blue) about 8% of the time (2 days each March) and blows offshore 23% of the time (0 days in an average March). Over an average March winds stronger than >40kph (25mph) are expected on 3 days at Aberaeron
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.