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Machir Bay (Islay) Notations
Qualité quand ça marche: 4.0
Consistance des Vagues: 3.0
Niveau de Difficulté: 3.0

Général: 4.0

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Surf Report Feed

Statistiques de Houle pour Machir Bay (Islay), Hiver: Vagues avec Vents Légers ou Favorables.

This image shows only the swells directed at Machir Bay (Islay) that coincided with light winds or offshore conditions over a normal northern hemisphere winter and is based upon 6931 predictions, one every 3 hours. The direction of the spokes show where quality surf generating swell comes from. Five colours illustrate increasing wave sizes. Blue shows the smallest swells, less that 0.5m (1.5 feet) high. Green and yellow represent increasing swell sizes and red represents the largest swells, greater than >3m (>10ft). In either graph, the area of any colour is proportional to how often that size swell was forecast.

The diagram indicates that the prevailing swell direction, shown by the largest spokes, was W, whereas the the most common 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 16% of the time, equivalent to 15 days. Open water swells exceeding >3m (>10ft) only occur 1.0% of the time in a typical northern hemisphere winter, equivalent to just one day but 5% of the time we expect swell in the range 2-3m (6.5-10ft) 5%, equivalent to (5 days). Taking into account the fraction of these swells that coincided with predicted offshore winds, and given the fact that Machir Bay (Islay) is exposed to open water swells, we calculate that clean surf can be found at Machir Bay (Islay) about 16% of the time and that surf is blown out by onshore wind 72% of the time. This is means that we expect 80 days with waves in a typical northern hemisphere winter, of which 15 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.