Rosa Wind Stats

The graph describes how commonly and how strongly the wind blows from different directions over a normal July. The longest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with deep blue strongest. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Rosa, located 20 km away (12 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 prevailing wind at Rosa blows from the SE. If the rose plot shows a nearly round shape, it means there is no strong bias in wind direction at Rosa. Converseley, dominant spokes illustrate 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 July, the model suggests that winds are light enough for the sea to be glassy (the lightest shade of blue) about 13% of the time (4 days each July) and blows offshore 27% of the time (8 days in an average July). Over an average July winds exceeding >40kph (25mph) are not expected, but 3 have winds on the range 30-40 (19-25) at Rosa

read more