My UFO in Everett Washington 3-17-18

Something I saw in the sky I cannot explain. Totally silent, traveling against the prevailing wind.  I filmed this as I was leaving work. It was absolutely silent, moving about 100 mph against the prevailing winds. I have about a minute of video I shot with my cell phone. Anyone with a idea about what this is feel free to contact me: walkersj324@gmail.com