Thousands are flocking to the Tampa Bay area this weekend for spring break but red tide is welcoming them with medial to high-level concentrations. The latest FWC map released on Friday shows elevated levels on beaches as far north as Clearwater and the Dunedin causeway, and as far south as Sarasota beaches like Lido Beach. "It smells. It's fishy, but I'm holding up fine," Michelle McCauley of Ohio said. McCauley is among the people on vacation who said they were caught off guard by the latest algae bloom. Red tide is a harmful algal bloom, or HAB, that is created when plants in the sea grow out of control and cause harmful toxins. Those toxins can have negative impacts on people, marine mammals, birds, fish and shellfish. MORE: http://bit.ly/3YKtOCi ►Subscribe: https://on.wtsp.com/youtube ►Website: https://www.wtsp.com/ ►Facebook: https://facebook.com/10TampaBay ►Twitter: https://twitter.com/10TampaBay