Local Weather Forecasts

Unfortunately, none of the local TV weather services accurately reports North Richardson Bay weather; nor does the Weather Channel’s banner for Sausalito. The only one forecaster that does is Weather Underground, a San Francisco-based forecasting service built on a network of 180,000 reporting stations. WU has dozens of local wi-fi reporting... Read more

The Roiling Sea

Sea level is not level at all. Just as the surface of the earth is not flat, the surface of the ocean is not flat. Because the earth rotates to the east and because the ocean responds slowly to the rotation* and the surface of the sea piles up along... Read more

Predicting Abnormally High-Water Events

As described previously, tide tables are merely estimates calculated by averaging the highs and lows for the last ten years and projecting them forward for the coming year(s). During periods of rain, tide tables must be adjusted to higher levels than forecast. Here is a high water level forecasting tool... Read more

Understanding Tides and Water Levels in the Bay

Sooner or later everyone who lives on the water acquires a tide chart thinking that it will forecast the tides. After a while, we realize that it doesn’t. The timing of the tides can be accurately determined from the relative locations of the moon and sun and their gravitational pull... Read more

Understanding Our Local Microclimate

Every day for the first ten days after I moved to the Yellow Ferry Harbor in mid-May 1978 I woke to sunshine and hot days. I felt like I was in summertime heaven! But that lasted for only two weeks when I woke to find a blanket of fog that... Read more

A Double Whammy: High Winds + the PGE Shutoff

Neighbors helping neighbors. It’s how we weathered the chaos brought on by some unusually high winds, coupled with yet another PGE shut-off. Larry Clinton opined, “I’ve never seen so many whitecaps, and I moved here in the winter of 1980-81, when 90mph gusts closed the GGB. Ironically, we never lost... Read more

Different Floats for Different Folks

During the late 19th and early 20th centuries, the rivers of the United States were home to entire communities of people living in self-made houseboats. The history of these communities has been explored briefly in river memoirs such as Harlan Hubbard’s Shantyboat Journal but hasn’t been thoroughly examined in a... Read more

A Labor Day Weekend to Remember

A Labor Day weekend to remember—or forget—depending upon how one managed to survive the heatwave. Joy Dryden (West Pier) describes the intense heat—105 degrees in the shade—on the afternoon of Friday, September 1: I decided at the most heat (105°) to seek refuge at my air conditioned office. As I... Read more

Cloud Cover for a UFO?!?

Donna writes: What we caught was a lenticular cloud. It was photographed May 20th over a period of 16 minutes, starting at 7:54 PM. I sent it to a NASA friend who said, “These small symmetrical rather self-contained clouds are typically formed downwind of mountain peaks.” Sort of a condensed... Read more