Long Beach Wind Statistics, Autumn averages since 2006
This chart describes how often and how strongly the wind blows from different directions over a normal northern hemisphere autumn. The biggest spokes point in the directions the wind most commonly blows from and the shade of blue suggests the strength, with dark blue strongest. It is based on 6516 NWW3 forecasts of wind since since 2006, at 3hr intervals, for the closest NWW3 model node to Long Beach, located 24 km away (15 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 Long Beach blows from the W. If the rose graph shows a fairly circular pattern, it means there is no strong bias in wind direction at Long Beach. On the other hand, dominant spokes show favoured directions, and the more dark blue, the stronger the wind. Spokes point in the direction the wind blows from. During a typical northern hemisphere autumn, the model suggests that winds are light enough for the sea to be glassy (light blue) about 20% of the time (18 days each northern hemisphere autumn) and blows offshore 34% of the time (32 days in an average northern hemisphere autumn). Over an average northern hemisphere autumn winds stronger than >40kph (25mph) are expected on 4 days at Long Beach
IMPORTANT: Beta version feature! Swell heights are open water values from NWW3. There is no attempt to model near-shore effects. Coastal wave heights will generally be less, especially if the break does not have unobstructed exposure to the open ocean.