Eddy creates AM southerly flow then fades in the afternoon. by Mike Godsey, mike@iwindsurf.com The tiny eddy that is often created west of the Golden Gate is actually more west of Pt. Reyes tomorrow and, unlike today, it is more likely to die before the afternoon winds ramp up. The animation below shows the relationship…
A visual guide: What’s with those dirty thin clouds above the marine layer clouds. by Mike Godsey, mikeATiwindsurf.com Yesterday Ben did a great job showing the impact of the current monsoonal pattern on Southern California so today I will cover the Bay Area. As the marine layer clouds burn back today you will notice 2 things. First…
SW flow fades, NW wind ramps up by Mike Godsey, mikeATiwindsurf.com The Bay Area has seen several day of SW flow and the waters from Treasure Island northward to Sherman Island have rocked with southerly winds in the low to even upper 20’s. A major factor in these atypical marine surge winds was a large…
Eddy rules, dies, and NW winds rule. by Mike Godsey, mikeATiwindsurf.com I will add text to this blog as I fine tune the forecast. But the 3 part video gives the you the big picture about today through Monday.
SSW wind through Muir Bay & Gate focuses San Pablo Bay robbing Sherman Island of peak winds. by Mike Godsey, mikeATiwindsurf.com Forecast note at 7AM today: “As the marine surge ramps up the flow will first be diverted into Napa in the so watch the San Pablo Bay sensor for S to SSW wind. If…
Today vs. Tomorrow: The isobars tell the story. by Mike Godsey, mikeATiwindsurf.com The 2 key players in the Bay Area summer winds are the North Pacific High’s NW winds and the Central Valley thermal. Today and especially tomorrow the NW wind are only bit players. So the Central Valley commands the weather stage. Paradoxically this…
North Pacific High ridge, eddy & upper low may trigger a marine surge. by Mike Godsey, mikeATiwindsurf.com Last Sunday in the extended forecast I issued a Marine Surge Watch for this Friday. This is my jargon to give you a heads up that there is a chance of a surge of southerly wind and fog pouring through…
Rio Daze winds at Sherman Island. by Mike Godsey, mikeATiwindsurf.com In the summer the Bay Area often has a wind pattern I call a Combo day. On these days we see a mixture of NW andSW wind in which brings wind to much of the Bay waters. The relative balance of the NW wind from the North Pacific…
The gory details. by Mike Godsey, mikeATiwindsurf.com I know it sometimes looks like we ignore occasions when we totally blow forecasts. But actually we are acutely aware of our errors and when the mistakes are really big we work together to figure out what happened. Normally this all happens behind the scenes but I thought since my Southern California…
Fog induced local sea breezes defy forecasting. by Mike Godsey, mikeATiwindsurf.com There is one pattern for which models and all empirical data can not begin to forecast. Like I said in today’s forecast if the fog buries the coast then the winds will be weaker than forecast. But I should have added that if you…