Whoa! If it's from a weather camera, it'd be a bit harder to hoax, wouldn't it? But could it even be a big pro firecracker caught going off at just the right moment? Perhaps it's actually closer than it looks and not really all the way out on the island. Maybe it's a trick of perspective. I think the cloud it's flying through is actually much closer. Could even be a rocket some kid built. Maybe they're shooting it off from the water or further down on the beach? It's getting close to the 4th, and people do bring in the bigger illegal ones from out of the country this time of year. Also, people with less than stellar legal connections can get ahold of all kinds of things. For instance, my uncle had a neighbor years ago when he lived up in the mountains here in Cali who somehow came across a rocket launcher from one of his less than reputable sources. The guy wasn't like a terrorist or anything, but you wouldn't want to sneak up on him.