I decided to go out today and and see if the Sac is ready to go.  The visibility is still about two feet and I didn't see a single insect all day.  I did see a few fish rolling - so that was somewhat encouraging.  With the limited visibilty, the challenge is getting the fish to see the flies.  We spent some time runnning laps on all my favorite runs and only had one hook-up all day.  The good news is after tomorrow's rain, it looks like we have about 10 days of dry weather and that should help to improve conditions.