HARMFUL ALGAL BLOOM FORECASTS
Southwest Florida Satellite Imagery
Composite 8-days of satellite imagery up to 03-23-2025 showing location of algae bloom which may include algae besides K. brevis. Overlaid cell count data provided by several contributors. The past few days of imagery can be seen at the HAB monitoring site.
The default base layer in the map below displays an 8-day composite of Chlorophyll Fluorescence products up to 03-23-2025 showing location of algae bloom which may include algae besides Karenia brevis. Additional layers may be toggled on to show an 8-day composite of Chl-a or a Chl-a anomaly product (03-22-2025) that highlights increased chlorophyll (new blooms) over the past two months.
Water samples from 03-16-2025 to 03-23-2025 found Karenia brevis was either not present or at background levels so there is no risk of respiratory irritation and blooms in imagery are unlikely to be a red tide (caused by Karenia brevis).
The default base layer in the map below displays an 8-day composite of Chlorophyll Fluorescence products up to 03-23-2025 showing location of algae bloom which may include algae besides Karenia brevis. Additional layers may be toggled on to show an 8-day composite of Chl-a or a Chl-a anomaly product (03-22-2025) that highlights increased chlorophyll (new blooms) over the past two months.
Water samples from 03-16-2025 to 03-23-2025 found Karenia brevis was either not present or at background levels so there is no risk of respiratory irritation and blooms in imagery are unlikely to be a red tide (caused by Karenia brevis).
The images were derived from Copernicus Sentinel-3 satellite data from the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) and were processed by NOAA, National Centers for Coastal Ocean Science. Cell count data were provided by several contributors.
See more information about our bloom monitoring imagery.