Date: May 21, 2011
Hamilton Ontario Saturday May 21 2011 saw blue purple flashing light in sky. I had to look again again at the position in the sky, it was if someone had a flashlight and was being turned on/off approximately 3 - 4 flashes moving slowly, or seemed to stay in the same position in the sky.
The light was hiding behind some clouds, sky was very clear from around cloud area. Others also saw the light some say it could have been a satellite, it was not a plane. Thanks.