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Water sampling measured red tide in the St. Marys and St. Johns Rivers in northeast Florida

Interactive map of Florida coast showing dots in northeast Florida and a blob of blue/green on the west coast. Water sampling measured Karenia brevis (red tide) in the St. Marys and St. Johns Rivers in northeast Florida last week. While our respiratory forecasts are not produced in rivers, low-to-moderate respiratory conditions may be possible on shorelines that are downwind. Visit our satellite imagery for updates: https://coastalscience.noaa.gov/science-areas/habs/hab-forecasts/gulf-coast/florida-satellite-imagery