Pors Poulhan Wind Stats

The rose diagram describes how frequently and how strongly the wind blows from different directions through a typical April. The largest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with the darkest shade of blue strongest. It is based on 3360 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Pors Poulhan, located 3 km away (2 miles). There are insufficient 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 Pors Poulhan blows from the W. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Pors Poulhan. 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 April, the model suggests that winds are light enough for the sea to be glassy (light blue) about 10% of the time (3 days each April) and blows offshore 40% of the time (12 days in an average April). During a typical April wind stronger than >40kph (25mph) was predicted for only a single days at Pors Poulhan

read more