Back Bommie Wind Stats

This picture describes how frequently and how strongly the wind blows from different directions through a typical November. The longest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with deep blue showing the strongest winds. It is based on 3347 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Back Bommie, located 9 km away (6 miles). There are insufficient 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 prevailing wind at Back Bommie blows from the SE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Back Bommie. By contrast, dominant spokes show favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average November, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 7% of the time (2 days each November) and blows offshore 16% of the time (5 days in an average November). In a typical November wind stronger than >40kph (25mph) was predicted for only a single days at Back Bommie

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