Florida March 31, 2020 4:42 pm The Emergency Alert System: Everything You Need to Know We’ve all heard it: the Emergency Alert System. That loud sound signifying a national emergency. But who decided to use that sound? And is it designed to be that annoying? US & World Videos 0:54 Nude cruise sailing out of Miami in 2025 2:42 Western High School debate team raising money for championship after coach arrested 3:01 Family awarded $8M in negligence lawsuit after 2018 fatal crash 2:50 Man leaves turmoil-stricken Haiti for fresh start in the U.S. 2:37 Karma, pitbull abandoned in Lauderhill after being abused and shot, on the mend