Then Cut-Off Low stops just west of Marin County creating a mild marine surge of SW wind and fog. by Mike Godsey, mike@iwindsurf.com Normally a marine surge of SW foggy cool air can happen to bring a sudden end to a heat wave. But today we have a less typical marine surge that is caused by a Cut-Off Low….
So weaker Gorge, Bay Area Peninsula & coast winds. by Mike Godsey, mike@iwindsurf.com The Columbia River Gorge and the San Francisco Bay Area Peninsula and coast had a long spell of unusually weak winds the last 2 weak. Sometimes this was due to monsoonal clouds aloft and even sprinkles. Sometimes is was related to a weak pressure gradient in…
High pressure over the western USA sends moist air above the west coast. by Mike Godsey, mike@iwindsurf.com Several times each summer the exotic phrase “Monsoonal Clouds” appears in the forecast. For some of you the phrase is just greek for others it triggers vague memories of something to do with India. If you are a Vietnam…
…as the battered old North Pacific High merges with new North Pacific High. by Mike Godsey, mike@iwindsurf.com It has been a wild 9 days of unending SW flow and Sherman Island and East Bay winds such as we used to see a decade or two ago. And the Sherman Island wind distribution was much more…
North Pacific High’s north winds maintain an eddy. by Mike Godsey, mike@iwindsurf.com Welcome to July 1994! Like the last several centuries the San Francisco Bay Area is having the normal July SW flow with a deep marine layer! Today that moist chilly blanket is snugging over the hills of Herb Caen’s Bagdad-by-the-Bay. There are many causes of…
The NW winds RULE this afternoon! by Mike Godsey, mike@iwindsurf.com See the barely spinning 200 mile in diameter eddy NW of the Bay Area. The last several days this eddy was just west of the Bay Area. Since the winds are circulating counter-clockwise around the eddy we had SW flow ocean wind which favors Sherman Island and the East Bay ….
Surface eddy and SW flow for the Bay Area by Mike Godsey, mike@iwindsurf.com I will add more text to this blog later today but right now the wind calls so this has to be brief. Yesterday, July 9, the S. F. Bay Area saw strong SW flow that really jacked up the Sherman Island winds while messing…
Decreasing temps and increasing clouds marine layer and SW wind aloft. by Mike Godsey, mike@iwindsurf.com
How an upper ridge impacts Southern California, Gorge and Bay Area winds. by Mike Godsey, mike@iwindsurf.com In the first video we are looking at a model projection of the upper level winds at the 500mb level ( around ≈ 18,000 ft.) from Friday 28 through Monday. At the start of the video notice the very warm air (reddish…
So NW flow ramps up on our coast and the Peninsula. by Mike Godsey, mike@iwindsurf.com Every read the phrase “tomorrow the North Pacific High’s surface NW winds will slide up the coast from Southern California and focus on the Bay Area” and wondered how can wind blowing from the NW move to the north.? Well tomorrow, Saturday, this is…