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Avalanche Voti
Qualità su una buona giornata: 1.0
Coerenza del surf: 3.0
Livello di difficoltà: 4.0
Folle: 4.0

Overall: 3.3

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Surf Report Feed

Avalanche Swell Statistics, Settembre: Surf with Light or Offshore Winds

This image shows only the swells directed at Avalanche that coincided with light winds or offshore conditions over a normal September. It is based on 2880 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. Green and yellow show increasing swell sizes and biggest swells greater than >3m (>10ft) are shown in red. In both graphs, 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 longest spokes, was W, whereas the the prevailing wind blows from the NW. 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 17% of the time, equivalent to 5 days. Open sea swells exceeding >3m (>10ft) are unlikely to happen in a normal September but 10% of the time you can expect swell in the range 1.3-2m (4-6.5ft) 10%, equivalent to (3 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Avalanche is exposed to open water swells, we estimate that clean surf can be found at Avalanche about 17% of the time and that surf is spoilt by onshore wind 77% of the time. This is means that we expect 28 days with waves in a typical September, of which 5 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.