TCs Wind Stats

The rose diagram shows how often and how strongly the wind blows from different directions through a typical January. The longest 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 showing the strongest winds. It is based on 3364 NWW3 forecasts of wind since since 2007, at 3hr intervals, for the closest NWW3 model node to TCs, located 29 km away (18 miles). There are not enough 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 TCs blows from the WSW. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at TCs. Converseley, dominant spokes represent favoured directions, and the more deep blue, the stronger the wind. Spokes point in the direction the wind blows from. Over an average January, the model suggests that winds are light enough for the sea to be glassy (light blue) about 26% of the time (8 days each January) and blows offshore 49% of the time (14 days in an average January). During a typical January wind stronger than >40kph (25mph) was predicted for only a single days at TCs

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