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Alibaba Surf Stats

All swells

(any wind direction)
Alibaba.surf.statistics.mayWnw.animatedWnw.label.animated

Good Surf

(light / offshore wind)

The figure illustrates the variation of swells directed at Alibaba through an average May and is based upon 3440 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind and surf right at the coastline so we have chosen the optimum grid node based on what we know about Alibaba. In the case of Alibaba, the best grid node is 25 km away (16 miles). The rose diagram describes the distribution of swell directions and swell sizes, while the graph at the bottom shows the same thing without direction information. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. These were forecast only 72% of the time. Green and yellow show increasing swell sizes and red represents largest swells greater than >3m (>10ft). In both graphs, the area of any colour is proportional to how commonly that size swell occurs. The diagram implies that the prevailing swell direction, shown by the longest spokes, was NW, whereas the the most common wind blows from the NNE. Because the wave model grid is out to sea, sometimes a strong offshore wind blows largest waves away from Alibaba and offshore. We combine these with the no surf category of the bar chart. To keep it simple we don't show these in the rose plot. Because wind determines whether or not waves are good for surfing at Alibaba, you can view an alternative image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. In a typical May, swells large enough to cause clean enough to surf waves at Alibaba run for about 28% of the time.

  • Alibaba.surf.statistics.januaryWnw.animated
  • Alibaba.surf.statistics.februaryWnw.animated
  • Alibaba.surf.statistics.marchWnw.animated
  • Alibaba.surf.statistics.aprilWnw.animated
  • Alibaba.surf.statistics.mayWnw.animated
  • Alibaba.surf.statistics.juneWnw.animated
  • Alibaba.surf.statistics.julyWnw.animated
  • Alibaba.surf.statistics.augustWnw.animated
  • Alibaba.surf.statistics.septemberWnw.animated
  • Alibaba.surf.statistics.octoberWnw.animated
  • Alibaba.surf.statistics.novemberWnw.animated
  • Alibaba.surf.statistics.decemberWnw.animated

Also see Alibaba wind stats

Compare Alibaba with another surf break