What I've been told is that the release begins around 8 or 8:30 am every day and they will release for 3 to 3 1/2 hrs. They are planning on releasing 1000 cfs or more.
It won't reach Merils Pool for about 2 1/2 hrs, from the time they begin to release.
They are saying that the last release date for the Tuolumne will be 8/21, because they are going to be doing some maintenance.
Hope you don't get any sarcastic and obnoxious replies to your post. It's really uncalled for and rude.
Hope this helps.