I fished with George from San Diego today on the Lower Sac.  There was a high-wind advisory today and we were fearing the worst, but we ended up having a great day.  The wind held off until about 4pm and the fish were done by then in any case.  Today was a typical winter day on the Lower Sac.  It was hard to get any grabs before lunch, and then fishing was very good until about 3:30pm.  There are still some hydropsyche (aka "big") caddis hatching starting around 11:30am and the baetis are hatching en masse from 12:30pm until dark.  It was a little too windy for dry flies today, but George hooked a lot of very nice rainbows up in the heads of the riffles.  We had good luck wading and fishing from the boat.  Most of our fish were 17-20" today.  We did well on several small mayfly nymphs in a size 18.  All of our fish came out of water that was less than two feet deep today - fun stuff!