Winchesteer Bay/Umpqua Jetty Wind Stats

The rose diagram shows how often and how strongly the wind blows from different directions over a normal 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 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Winchesteer Bay/Umpqua Jetty, located 30 km away (19 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 Winchesteer Bay/Umpqua Jetty blows from the WNW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Winchesteer Bay/Umpqua Jetty. Converseley, dominant spokes represent favoured directions, and the more deep 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 10% of the time (3 days each July) and blows offshore 11% of the time (3 days in an average July). Over an average July winds exceeding >40kph (25mph) are not expected, but 5 have winds on the range 30-40 (19-25) at Winchesteer Bay/Umpqua Jetty

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