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Notation de Spot de Surf

Noter Da Mei Sha Beach


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Statistiques de Houle pour Da Mei Sha Beach, Octobre: Vagues avec Vents Légers ou Favorables.

This image shows only the swells directed at Da Mei Sha Beach that coincided with light winds or offshore conditions over a normal October and is based upon 2975 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. Green and yellow show increasing swell sizes and red represents the highest swells, greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how commonly that size swell occurs.

The diagram implies that the dominant swell direction, shown by the longest spokes, was SSE, whereas the the dominant wind blows from the ENE. The chart at the bottom shows the same thing but without direction information. For example, swells larger than 1.5 feet (0.5m) coincided with good wind conditions 0.2% of the time, equivalent to 0 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal October. Taking into account the proportion of these swells that coincided with predicted offshore winds, and given the fact that Da Mei Sha Beach is quite sheltered from open water swells, we calculate that clean surf can be found at Da Mei Sha Beach about 0.2% of the time and that surf is spoilt by onshore wind 0.8% of the time. This is means that we expect 0 days with waves in a typical October, of which 0 days should be surfable.

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.