White bright quick light

We went to the beach to have a late night drink around 1am, in St. Petersburg, Florida. There were 4 of us sitting on a blanket and talking for about an hour. My sister, cousin and I were looking at the hotels down the strip of the beach. All of a sudden, we saw a white, bright, round looking shape, that quickly appeared. It looked like it shot up in the sky because you could see a slight tail from the light follow it. It was very bright and a significant size for something in the sky.  It moved horizontally and darted back into the distance, all within a second or two. I  would say it disappeared for a millisecond and reappeared really far away as it moved.. the bright light was dimmer and smaller because of the distance, but you could still see how intense it was.