Category: Northwest

West Coast Wind Blog: Excuses, Excuses… Now a Cut-Off Low + eddy make Bay Area & Southern California forecasting tricky.

by Mike Godsey,mikeATiwindsurf.com For several weeks now our forecast team has been struggling with San Francisco Bay Area forecasting during a surface eddy pattern that is unprecedented in its duration and longevity. Now we have to add a Cut-Off Low up at ≈ 18,000 ft. to the mix. And there is a reason for the…

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West Coast Wind Blog: How the NPH and convergence aloft helped jazz up our surface NW wind

by Mike Godsey, mikeATiwindsurf.com As you can see in my banner animation above lots of sites had strong wind yesterday. The day played out pretty much as outlined in my 2 recent blogs about convergence aloft and the two NPH’s merging. This blog shows how the surface winds you see in the banner were related…

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West Coast Wind Blog: How winds aloft impact the strength of the North Pacific High and California winds April 9.

Upper convergence and divergence the strength of the North Pacific High:  by Mike Godsey, mikeATiwindsurf.com ROUGH DRAFT There is a tendency of many kiters and especially sailors to look at the wind from a 2-dimensional perspective. This means we only care about the direction and strength of the wind. Although kiters are sometimes aware that their…

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West Coast Wind Blog: Southern California low pressure can bring wind riches or poverty.

by Mike Godsey, mikeATiwindsurf.com, More photos here Lots of you know about the thermal trough (aka “heat bubble”) that can kill some Southern California sites, especially from Belmont to Seal, when we get a major heat event. But if I am right we will be dealing with another thermal trough tomorrow, Monday, April 1. This…

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West Coast Wind Blog: Unending easterly winds for most of the west coast.

by Mike Godsey, mail: mike AT iwindsurf Recent days have seen cool powerful easterly winds in the western Gorge, powerful Santa Ana winds for Southern California, nagging wind killing NE winds just aloft over the Bay Area. And for the great majority of kiters and windsurfers, these easterly winds are useless. But there is one…

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