Black Rock Wind Stats

This picture describes how frequently and how strongly the wind blows from different directions through a typical August. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with deep blue showing the strongest winds. It is based on 3574 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Black Rock, located 44 km away (27 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 prevailing wind at Black Rock blows from the NE. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Black Rock. On the other hand, 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 August, the model suggests that winds are light enough for the sea to be glassy (pale blue) about 2% of the time (1 days each August) and blows offshore just 9% of the time (2 days in an average August). During a typical August wind stronger than >40kph (25mph) was forecast for only a single days at Black Rock

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