Severe weather July 3, 2024 5:57 pm How do lightning warning systems work? NBC6’s Marissa Bagg takes a closer look at lightning warning systems in the wake of the death of a 19-year-old runner who was struck and killed by lightning. US & World Videos 1:43 Family, friends gather to honor 19-year-old who drowned after saving sister 0:33 Protests continue after Lil' Abner Mobile Home Park residents told to move out 2:07 SAS passenger recounts severe turbulence caught on camera 1:43 Head found in Key Biscayne identified as that of 19-year-old missing swimmer 1:36 Head found on Key Biscayne beach was swimmer who drowned after saving sister