I was outside of my home having a cigar and a light to the north caught my eye. At first I thought it was a plane or helicopter as it followed a horizontal line parallel to the northern horizon above the city. Then it abruptly shot up and to the left then hovered. It the abruptly shot to the right and descended at a 90 degree angle straight down to the horizon itself. Then shot back up to its original position then descended abruptly out of sight. I had seen ufos in the past periodically but this had the same characteristics of a ufo encounter I had at four yrs old.