Greenhill Wind Stats

This image 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 strongest. It is based on 3472 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Greenhill, located 41 km away (25 miles). There are not enough 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 Greenhill blows from the S. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Greenhill. By contrast, dominant spokes illustrate favoured directions, and the more dark 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 (light blue) about 9% of the time (3 days each July) and blows offshore 22% of the time (1 days in an average July). Over an average July wind stronger than >40kph (25mph) was predicted for only a single days at Greenhill

read more