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Notation de Spot de Surf

Noter Happy Jacks


Surf Report Feed

Statistiques de Houle pour Happy Jacks, Octobre: Vagues avec Vents Légers ou Favorables.

This image shows only the swells directed at Happy Jacks that coincided with light winds or offshore conditions through a typical October. It is based on 2976 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours represent increasing wave sizes. Very small swells of less than 0.5m (1.5 feet) high are shown in blue. Green and yellow show increasing swell sizes and highest swells greater than >3m (>10ft) are shown in red. In either graph, the area of any colour is proportional to how frequently that size swell occurs.

The diagram suggests that the most common swell direction, shown by the biggest spokes, was ENE, whereas the the dominant wind blows from the WNW. 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 11% of the time, equivalent to 3 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal October. Taking into account the ratio of these swells that coincided with predicted offshore winds, and given the fact that Happy Jacks is exposed to open water swells, we estimate that clean surf can be found at Happy Jacks about 11% of the time and that surf is messed up by onshore wind 14% of the time. This is means that we expect 8 days with waves in a typical October, of which 3 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.