Thompson was the on-air nightly weather anchor, science, and even occasional lifestyle reporter for KTTV FOX 11 in Los Angeles. When he started appearing on Channel 13 (the Fox-owned sister station of Channel 11 in L.A.), Thompson became known for dancing during the weather reports on the 11 PM newscasts, which he originally did on a whim. However, when email reaction was so enormously positive, he kept it going, quickly gaining not only a local following but nationwide attention as well. He was featured on "Jimmy Kimmel Live!" on October 5, 2006, and on Brit Hume's program on Fox News Channel, among others. He left both stations as of June 3, 2011. He made no on-air announcements of his future plans as a weather anchor.