Pors Poulhan Wind Stats

The rose diagram describes how commonly and how strongly the wind blows from different directions over a normal December. The biggest 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 3448 NWW3 forecasts of wind since since 2006, 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 dominant 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. Converseley, dominant spokes show favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical December, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 7% of the time (2 days each December) and blows offshore 25% of the time (7 days in an average December). Over an average December winds stronger than >40kph (25mph) are expected on 5 days at Pors Poulhan

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