I saw it, and then a few seconds later it disappeared, and that it reappeared a few seconds later.

It appeared high up in the sky and was small like higher than an airplane. It was freight, silver, and either typical UFO shape or a long cylinder, not quite sure, because it appeared for a few seconds, and then it disappeared and then I was like wait a minute without a UFO and then it reappeared again, like as if to answer lol. And then a few seconds later, it disappeared again. The sky is blue, and no clouds in sight. About 30 to 45 minutes later the emergency alert system went off and I thought the timing was interesting so I figured the military had seen it and it being so close to New York City…? Maybe it set off the alert so I thought I should report what I saw!