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post #1 of Old 07-05-2012 Thread Starter
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Join Date: Feb 2011
Location: San Francisco Bay area
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SF Bay at it's best/worst yesterday

Just seemed to be an odd fluky day, for sea state and wind.

We went behind Treasure Island to the slot. We got about 1/4 mile across to Angel Island and turned back. A nasty chop, contrary current, and wind 22 gusting to 30 now and then.

So back to the south bay, and we decided to have a go at crossing the slot again, this time near Alcatraz. It was quite nice until we got behind Alcatraz and, wham, wind gusted to over 32 (not sure the exact speed as the wind indicator didn't have time to respond). That's the closest to a knockdown we've been, boat heeled to about 45-55 degrees.

At this point decided to go somewhere more sheltered, and headed west over to the SF shore and beam reached south all the way down to Hunters Point. This segment was the highlight - 7.5 knots and smooth water all the way.

Back home and I've never seen such a nasty sea state near to the Alameda Estuary entrance. A very confused chop and gusty winds making it hard to steer. Particularly so for the Catalina 31 behind us who was doing a good impression of a plane with it's tail shot off.

Never been so glad to get back in the slip and have a cup of tea.

What was going on with the sea state? High tide was 2pm. But the worst conditions seemed to be around high tide and for a couple of hours after. Simply wind strength vs. time? There seemed to be some interaction with the current but contrary to my understanding.

Bristol 31.1, San Francisco Bay
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