Blue Holes Wind Stats

The rose diagram describes how often and how strongly the wind blows from different directions through a typical October. 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 3471 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Blue Holes, located 29 km away (18 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 Blue Holes blows from the SW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Blue Holes. Converseley, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average October, the model suggests that winds are light enough for the sea to be glassy (light blue) about 3% of the time (1 days each October) and blows offshore just 10% of the time (3 days in an average October). In a typical October wind stronger than >40kph (25mph) was expected for only a single days at Blue Holes

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