Shag Rock Wind Stats

This picture illustrates how frequently and how strongly the wind blows from different directions through a typical June. The longest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the strongest winds shown by dark blue. It is based on 3266 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Shag Rock, located 16 km away (10 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 Shag Rock blows from the WSW. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Shag Rock. By contrast, dominant spokes represent favoured directions, and the more the darkest shade of blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average June, the model suggests that winds are light enough for the sea to be glassy (light blue) about 9% of the time (3 days each June) and blows offshore 31% of the time (9 days in an average June). In a typical June winds stronger than >40kph (25mph) are expected on 3 days at Shag Rock

read more