Log in Subscribe

Red Tide Status Update: 11/7/25

Posted

Over the past week, red tide was observed in 16 samples collected from Northwest Florida and Florida’s East Coast. Bloom concentrations (>100,000 cells/liter) were present in five samples from Gulf County. We continue to use satellite imagery (USF and NOAA NCCOS) to help track nearshore and offshore conditions. 

Additional details are provided below.

  • In Southwest Florida over the past week, K. brevis was not observed.
  • In Northwest Florida over the past week, K. brevis was observed at background concentrations in Walton County, background to very low concentrations in Bay County, low to high concentrations in Gulf County, and background concentrations in Franklin County.
  • Along the Florida East Coast over the past week, K. brevis was observed at background concentrations in one sample from Volusia County.

Fish kills suspected to be related to red tide were reported to FWC's Fish Kill Hotline or other partners over the past week in Northwest Florida (Bay and Gulf counties).

Respiratory irritation suspected to be related to red tide was not reported over the past week in Florida. For forecasts that use FWC and partner data, please visit the National Oceanic and Atmospheric Administration’s Gulf Coast Harmful Algal Blooms Forecast.

Short-term (3.5-day) forecasts by the USF-FWC Collaboration for Prediction of Red Tides predict northwestern transport of surface and subsurface waters along Bay and Gulf counties. Surface currents are variable from Franklin County to northern Monroe County. Subsurface currents are minimal from Franklin County to Pasco County, and southeastern from Pinellas County to northern Monroe County.

The next status report will be issued on Friday, November 14. Please check our daily sampling map, which can be accessed via the online status report on our Red Tide Current Status page. For more information on algal blooms and water quality, please visit Protecting Florida Together.

This information, including maps and reports with additional details, is also available on the FWRI Red Tide website. The website also provides links to additional information related to the topic of Florida red tide including satellite imagery, experimental red tide forecasts, shellfish harvesting areas, the FWC Fish Kill Hotline, the Florida Poison Information Center (to report human health effects related to exposure to red tide), and other wildlife related hotlines.

To learn more about various organisms that have been known to cause algal blooms in Florida waters, see the FWRI Red Tide Flickr page. Archived status maps can also be found on Flickr.       

Please follow our Facebook page for status updates and other interesting facts about red tide and other harmful algal blooms in Florida.

Comments

No comments on this item

Only paid subscribers can comment
Please log in to comment by clicking here.