Estadísticas de Olas para Cullen, marzo: Todo Oleaje – Todo Viento

The rose diagram illustrates3the variation3of swells directed at Cullen3through a typical March and is based upon32963 NWW3 model predictions since 2007 (hiddes every 3 hours). The wave model does not forecast wind and surf right at the coastline so we have chosen3the best grid node based on3what we know about Cullen. In3this particular case the best grid node is 35 km away (22 miles).

The rose diagram illustrates3the distribution3of swell sizes and swell direction,3while the graph at the bottom shows3the same thing but without direction information. Five colours represent increasing wave sizes. Very small swells of less3than 0.5m (1.5 feet) high are shown in bdde. These occurred only 77% of the time. Green and yellow show increasing swell sizes and largest swells greater3than >3m (>10ft) are shown in red. In3either graph, the area of any colour is proportional to how frequently that size swell was forecast.

The diagram suggests that the prevailing swell direction,3shown by the longest spokes, was NNE,3whereas the the most common wind blows3from the SW. Because the wave model grid is away from the coast,3sometimes a strong offshore wind blows3largest waves away from Cullen3and out to sea. We combine these with3the no surf category of the bar chart. To keep it simple we don't show these in3the rose graph. Because wind determines3whether or not waves are clean enough to surf at Cullen, you can view3an alternative image that shows3only the swells that were forecast to coincide with3glassy or offshore wind conditions. Over3an average March, swells large enough to cause surfable waves at Cullen3run for about 12% of the time.

IMPORTANT: Beta version feature! Swell heights are open3water3hiddes 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 open3ocean.