Whether you're a native Floridian or a seasoned visitor to the state's coasts, you know it only takes a visit from one unwanted visitor to ruin any beach day — red tide. Karenia brevis is a naturally ...

Red tide is caused by an microscopic algae called karenia brevis. Health alerts for red tide have been issued for several areas in Southwest Florida. Red tides can last for days, weeks or months. Red ...

Red tide concentrations have significantly increased in Northwest Florida over the past week, with bloom-level concentrations ...

Red tide blooms have been reported along Florida's Gulf Coast. Swimming in areas with red tide can cause skin irritation and burning eyes, especially for those with sensitive skin. People with severe ...