Statistiques de Vent de Ardnave Point and Bay (Islay), moyennes sur Hiver depuis 2006
This chart describes how frequently and how strongly the wind blows from different directions through a typical northern hemisphere winter. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with the darkest shade of blue strongest. It is based on 6931 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Ardnave Point and Bay (Islay), located 18 km away (11 miles). There are too few 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 dominant wind at Ardnave Point and Bay (Islay) blows from the W. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Ardnave Point and Bay (Islay). By contrast, dominant spokes represent favoured directions, and the more dark 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 (the lightest shade of blue) about 3% of the time (3 days each northern hemisphere winter) and blows offshore just 42% of the time (25 days in an average northern hemisphere winter). In a typical northern hemisphere winter winds stronger than >40kph (25mph) are expected on 35 days at Ardnave Point and Bay (Islay)
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.