Halawa Wind Stats

This picture describes how commonly and how strongly the wind blows from different directions through a typical May. The biggest 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 3440 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Halawa, located 47 km away (29 miles). There are too few 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 dominant wind at Halawa blows from the NNW. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Halawa. Converseley, dominant spokes illustrate favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average May, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 4% of the time (1 days each May) and blows offshore just 5% of the time (2 days in an average May). In a typical May winds exceeding >40kph (25mph) are not expected, but 4 have winds on the range 30-40 (19-25) at Halawa

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