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Dumpers Voti
Qualità su una buona giornata: 2.0
Coerenza del surf: 4.0
Livello di difficoltà: 4.0
Folle: 4.0

Overall: 3.3

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Surf Report Feed

Dumpers Swell Statistics, Winter: Surf with Light or Offshore Winds

This image shows only the swells directed at Dumpers that coincided with light winds or offshore conditions through a typical northern hemisphere winter. It is based on 7765 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 represent increasing swell sizes and biggest swells greater than >3m (>10ft) are shown in red. In each graph, 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 NE, whereas the the prevailing 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 58% of the time, equivalent to 53 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal northern hemisphere winter but 19% of the time we expect swell in the range 2-3m (6.5-10ft) 19%, equivalent to (17 days). Taking into account the fraction of these swells that coincided with forecast offshore winds, and given the fact that Dumpers is exposed to open water swells, we think that that clean surf can be found at Dumpers about 58% of the time and that surf is spoilt by onshore wind 41% of the time. This is means that we expect 90 days with waves in a typical northern hemisphere winter, of which 53 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.