Alnes Lighthouse Wind Stats

The rose diagram illustrates how commonly and how strongly the wind blows from different directions through a typical July. The largest 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 3720 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Alnes Lighthouse, located 3 km away (2 miles). There are insufficient 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 most common wind at Alnes Lighthouse blows from the NW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Alnes Lighthouse. Converseley, dominant spokes show favoured directions, and the more the darkest shade of blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average July, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 22% of the time (7 days each July) and blows offshore 28% of the time (1 days in an average July). In a typical July winds exceeding >40kph (25mph) are not expected, but 2 have winds on the range 30-40 (19-25) at Alnes Lighthouse

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