Stewart Island - Saber Reef Wind Stats

This image describes how frequently and how strongly the wind blows from different directions over a normal August. The longest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with deep blue showing the strongest winds. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Stewart Island - Saber Reef, located 41 km away (25 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 prevailing wind at Stewart Island - Saber Reef blows from the SE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Stewart Island - Saber Reef. 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. During a typical August, the model suggests that winds are light enough for the sea to be glassy (light blue) about 0.6% of the time (0 days each August) and blows offshore just 1.9% of the time (1 days in an average August). Over an average August wind stronger than >40kph (25mph) was expected for only a single days at Stewart Island - Saber Reef

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