UFO Sighting in Joshua Tree, California on September 21st 2015 – Looked like a star but to cloudy for stars then zigzag and went straight up

Sitting in my living room watching tv with my curtains open to see the clouds a thunderstorm is coming, and noticed a star I thought, but the clouds are out so you can't see them and right there a star impossible I said to myself then looking at it it started to zig zag left to right, I can't believe me eyes then it started going straight up I grabbed my phone to record it ran outside and it was gone