Fraser Valley - Weather

Weather

In winter, the Fraser Valley occasionally plays a significant role in the weather regime along the west coast of North America as far south as California, acting as a natural outlet for the intensely cold Arctic air mass which typically sits over Western Canada during winter. Under certain meteorological conditions strong winds pour out of the Fraser Valley and over the relatively warmer waters of the Strait of Georgia and the Strait of Juan de Fuca. This can cause ocean-effect snow, especially between Port Angeles and Sequim, where the air mass collides with the Olympic Mountains. The cold air from the Fraser Valley can also flow out over the Pacific Ocean. Lanes of convective ocean-effect clouds and showers are produced as heat and moisture modify the very dry, frigid air mass. These then typically organize as a low pressure system which returns the showers to the coast south of Canada, often bringing snow to unusually low elevations.

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