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Bolinas Jetty Notations
Qualité quand ça marche: 2.7
Consistance des Vagues: 2.6
Niveau de Difficulté: 2.0
Planche à voile et Kite Surf: 1.2
Foule a l'Eau: 2.0

Général: 2.7

Voir toutes les 18 notations

Basé sur 12 votes. Voter


Surf Report Feed

Statistiques de Houle pour Bolinas Jetty, Printemps: Toutes Houles – Tous Vents

This picture illustrates the combination of swells directed at Bolinas Jetty over a normal northern hemisphere spring and is based upon 8682 NWW3 model predictions since 2007 (values every 3 hours). The wave model does not forecast wind and surf right at the shore so we have chosen the best grid node based on what we know about Bolinas Jetty, and at Bolinas Jetty the best grid node is 29 km away (18 miles).

The rose diagram shows the distribution of swell directions and swell sizes, while the graph at the bottom shows the same thing but without direction information. Five colours show increasing wave sizes. The smallest swells, less than 0.5m (1.5 feet), high are coloured blue. These happened only 89% of the time. Green and yellow illustrate increasing swell sizes and red shows the largest swells, greater than >3m (>10ft). In each graph, the area of any colour is proportional to how often that size swell happens.

The diagram indicates that the most common swell direction, shown by the biggest spokes, was SW, whereas the the most common wind blows from the WNW. Because the wave model grid is away from the coast, sometimes a strong offshore wind blows largest waves away from Bolinas Jetty and out to sea. We lump these in with the no surf category of the bar chart. To avoid confusion we don't show these in the rose graph. Because wind determines whether or not waves are clean enough to surf at Bolinas Jetty, you can load a different image that shows only the swells that were forecast to coincide with glassy or offshore wind conditions. During a typical northern hemisphere spring, swells large enough to cause surfable waves at Bolinas Jetty run for about 7% of the time.

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.