Surf Forecast Surf Report
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Big Rock Wind Stats

Wind Stats

(% offshore)

All Swells

(any wind direction)

This image shows how commonly and how strongly the wind blows from different directions through a typical March. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue indicates the strength, with dark blue strongest. It is based on 3460 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to Big Rock, located 28 km away (17 miles). There are insufficient recording stations world wide to use actual wind data. No doubt some coastal places have very localized wind effects that would not be predicted by NWW3. According to the model, the prevailing wind at Big 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 Big Rock. On the other hand, dominant spokes show favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average March, the model suggests that winds are light enough for the sea to be glassy (light blue) about 21% of the time (7 days each March) and blows offshore 25% of the time (7 days in an average March). During a typical March winds exceeding >40kph (25mph) are not expected, but 1 have winds on the range 30-40 (19-25) at Big Rock

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