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Allisons Voti
Qualità su una buona giornata: 2.5
Coerenza del surf: 2.5
Livello di difficoltà: 2.0
Wind e kite surf: 1.0
Folle: 3.5

Overall: 2.7

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basato su 2 voti. Voto


Surf Report Feed

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

This image shows only the swells directed at Allisons that coincided with light winds or offshore conditions through a typical southern hemisphere winter. It is based on 8738 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 represents highest swells greater than >3m (>10ft). In either graph, the area of any colour is proportional to how commonly that size swell happens.

The diagram implies that the most common swell direction, shown by the longest spokes, was WSW, 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 54% of the time, equivalent to 49 days. Open sea swells exceeding >3m (>10ft) are unlikely to arise in a normal southern hemisphere winter but 6% of the time we expect swell in the range 2-3m (6.5-10ft) 6%, equivalent to (5 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Allisons is exposed to open water swells, we calculate that clean surf can be found at Allisons about 54% of the time and that surf is messed up by onshore wind 37% of the time. This is means that we expect 83 days with waves in a typical southern hemisphere winter, of which 49 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.