June 18, 2010 6:48 pm Happy Days Are Here — Or Maybe Just One Day If you’re feeling more upbeat than normal there might be a happy explanation, June 18 is considered the happiest day of the year.. Wake Up to Something Good 3:15 Attendees on alert at Southlake fest as severe weather threatens North Texas 1:39 Communities clean up after monster tornadoes 0:46 San Marcos Police issue Amber Alert for toddler 2:07 Police looking for murder weapon in Bowie HS shooting 2:10 Southlake's Art in the Square prepares for inclement weather