Lyall Bay-Bombora Wind Stats

The rose diagram describes how commonly and how strongly the wind blows from different directions through a typical September. The largest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with dark blue strongest. It is based on 3358 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Lyall Bay-Bombora, located 31 km away (19 miles). There are insufficient 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 prevailing wind at Lyall Bay-Bombora blows from the S. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Lyall Bay-Bombora. By contrast, dominant spokes show favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average September, the model suggests that winds are light enough for the sea to be glassy (light blue) about 6% of the time (2 days each September) and blows offshore 27% of the time (8 days in an average September). In a typical September winds stronger than >40kph (25mph) are expected on 4 days at Lyall Bay-Bombora

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