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Impossibles avaliaçãos
Qualidade em um dia bom: 5.0
Consistência do surf: 5.0
Nível de dificuldade: 4.0
Multidões: 3.0

Overall: 4.0

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Baseado em 2 votes. Vote


Surf Report Feed

Impossibles Swell Statistics, Julho: Surf with Light or Offshore Winds

This image shows only the swells directed at Impossibles that coincided with light winds or offshore conditions over a normal July. It is based on 2480 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 red shows the biggest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how commonly that size swell was forecast.

The diagram implies that the most common swell direction, shown by the biggest spokes, was SSW, whereas the the prevailing wind blows from the ESE. 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 98% of the time, equivalent to 30 days. Open water swells exceeding >3m (>10ft) only occur 1.7% of the time in a typical July, equivalent to just one day but 69% of the time we expect swell in the range 2-3m (6.5-10ft) 69%, equivalent to (21 days). Taking into account the fraction of these swells that coincided with forecast offshore winds, and given the fact that Impossibles is slightly protected from open water swells, we calculate that clean surf can be found at Impossibles about 98% of the time and that surf is spoilt by onshore wind 1.0% of the time. This is means that we expect 31 days with waves in a typical July, of which 30 days should be clean enough to surf.

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.