The eddy near Golden Gate is larger than when I issued the forecast, so we are seeing an earlier, faster dissipation due to the southeasterly winds from the eddy. Nonetheless, I am sticking to the current forecast due to strong northwest winds coming from the Farallon Islands (18 miles west gate).
7:30 AM Forecast:
A larger-than-expected counterclockwise vortex spun overnight, supporting heights as high as 5,000 feet. This creates south coast winds from Half Moon Bay to Bodega, while southwesterly winds within the bay carry fog over the bay into the Central Valley.
Unless the swirling winds shift from the southwest to the southeast, slow clearing may prevent many locations from reaching their forecast wind potential, so keep an eye on your windows and satellite imagery. If the eddy disappears according to the pattern, the sea breeze will shift to the west. These westerly winds will carry large swaths of fog through the Golden Gate to near or over the East Bay coast.
What this all means is: 1. There is unreliable Crissy/TI wind inside. 2. For Pt, there may only be a slight breeze indoors. Fog in Isabel, Racetrack and Berkeley. 3. Sherman Island has mild winds in the morning and stronger winds in the afternoon. 4. Except for the weaker winds east of the channel and at the launch site, the westerly to northwest westerly winds are weaker in Coyote and the third wind zone. 5. Good westerly wind from Stick to Flying Tigers/Haskins. 6. If and only if we have a clear night in Año Nuevo, winds are in the mid to teens from Waddell and stronger from Natural Bridges.
