Brant Rock Wind Stats

The rose diagram describes how frequently and how strongly the wind blows from different directions through a typical October. The longest spokes point in the directions the wind most commonly blows from and the shade of blue implies the strength, with deep blue strongest. It is based on 3471 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Brant Rock, located 16 km away (10 miles). There are not enough 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 dominant wind at Brant Rock blows from the NE. If the rose diagram shows a close to circular outline, it means there is no strong bias in wind direction at Brant Rock. Converseley, dominant spokes illustrate 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 October, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 8% of the time (2 days each October) and blows offshore 26% of the time (4 days in an average October). In a typical October wind stronger than >40kph (25mph) was expected for only a single days at Brant Rock

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