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Barvas (Lewis) Voti
Qualità su una buona giornata: 3.0
Coerenza del surf: 3.0
Livello di difficoltà: 1.0
Folle: 4.0

Overall: 3.5

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Surf Report Feed

Barvas (Lewis) Swell Statistics, Autumn: Surf with Light or Offshore Winds

This image shows only the swells directed at Barvas (Lewis) that coincided with light winds or offshore conditions through a typical northern hemisphere autumn. It is based on 7252 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 illustrate increasing swell sizes and red represents biggest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how often that size swell occurs.

The diagram indicates that the prevailing swell direction, shown by the largest spokes, was WNW, whereas the the prevailing wind blows from the SW. 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 21% of the time, equivalent to 19 days. Open water swells exceeding >3m (>10ft) only happen 1.6% of the time in a typical northern hemisphere autumn, equivalent to just one day but 8% of the time we expect swell in the range 2-3m (6.5-10ft) 8%, equivalent to (7 days). Taking into account the fraction of these swells that coincided with expected offshore winds, and given the fact that Barvas (Lewis) is exposed to open water swells, we calculate that clean surf can be found at Barvas (Lewis) about 21% of the time and that surf is blown out by onshore wind 61% of the time. This is means that we expect 75 days with waves in a typical northern hemisphere autumn, of which 19 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.