That's a common sight in this area!! It's atmospheric tent, commonly known as a weather balloon!! They are seen frequently in the area due to air currents but generally higher! It was low due to the southwest air flow that down pushing it down instead of up in a westernly fashion, hence why it was going back n forth was due to convex of the air currents. They are launch from the San
the first "ufo" looks like one of those giant character promotion balloons that broke free from it's moorings! the second ufo looks like another balloon of some sort. i don't usually say ufo's are balloons, and would like to state that.
If you want to see some alien craft,see my 160+ vid's.,on,youtube,my channel,Robert Newton,scroll to url.Or try,SDV_0294.MP4,http://youtu.be/4ps4U_40MkE,filmed by me,sun.11aug.2013.A cloaked alien scout craft,with a small flashing light on,going very slow,and low,about 2mls.,to SW.May be censored,so try,Robert Newton@astralaeos,on Twitter,or,Google,Robert Newton ufo,with pic's.,also,
This is NOT what was up there on this day, when they "returned" on the 17th there were close to 15-19 orbs during the day time. Only for them to return that evening in a terrific light show. It was amazing to see!