You can watch it here:
https://www.youtube.com/watch?v=agYuEAkEljw
If you can stay up that late or are a very early riser.
There are two links to watch it in my post.
All conditions right and I may see it live from 500 miles away here outside of Phx.
The following is an update from SpaceX:
“SpaceX is targeting Monday, August 21 at 11:04 p.m. PT for a Falcon 9 launch of 21 Starlink satellites to low-Earth orbit from Space Launch Complex at Vandenberg Space Force Base in California.