Red Tide Current Status

This summary report of current red tide conditions around Florida includes a map of sampling results and regional status reports.

Midweek Red Tide Update (September 17, 2014)

A bloom of Karenia brevis, the Florida red tide organism, is ongoing in the northeast Gulf of Mexico.  Recent satellite images from the Optical Oceanography Laboratory at the University of South Florida show an offshore surface bloom extending between Taylor and Pinellas counties, approximately 5 to 35 miles offshore between southern Taylor and northern Levy counties and 10 to 20 miles offshore southern Levy to Pinellas counties.  

Samples analyzed by FWC confirm bloom concentrations of K. brevis in the patches revealed by imagery. Specifically, background to medium concentrations were detected offshore of Dixie and Levy counties and in Cedar Key (Levy County). Fish kills and respiratory irritation have been reported in the bloom area. Widespread Trichodesmium blooms in surface waters have also been observed in several different areas along Florida’s Gulf Coast.  

No red tide has been detected so far this week alongshore or offshore of Pinellas, Manatee, Sarasota, Charlotte, Lee, Collier, or Monroe counties.

A full status report will be provided this Friday, September 19, 2014.

Midweek Red Tide Update September 17. 2014

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Red Tide Summary (September 12, 2014)

A patchy bloom of Karenia brevis, the Florida red tide organism, continues in the northeast Gulf of Mexico. Satellite images from the Optical Oceanography Laboratory at the University of South Florida show a surface bloom approximately 5 to 15 miles offshore between Dixie and northern Pinellas counties and less than 3 miles offshore of Cedar Key (Levy County). Concentrations in these areas range from background to medium.

Karenia brevis was not detected alongshore of Franklin, Wakulla, Taylor, Manatee, Charlotte, and Lee counties, or offshore of Escambia and Monroe counties. No samples were analyzed this week from Okaloosa, Santa Rosa, Walton, Bay, or Jefferson counties in northwest Florida. Additional samples analyzed throughout Florida this week did not contain Karenia brevis except for one sample collected alongshore of Sarasota County that contained background concentrations of K. brevis.

Last week, fish kills were reported inshore at Honeymoon Island (Pinellas County) as well as offshore in the bloom area, where low oxygen in bottom waters was also detected. In addition, respiratory irritation was reported last week at Anclote Key, Honeymoon Island, Three Rook Island (Pinellas County) and offshore in the bloom area. A fish kill was reported this week approximately 7 miles offshore of Cedar Key (Levy County). No fish kills or respiratory irritation have been reported alongshore or inshore this week.

Forecasts for the next three days by the USF-FWC Collaboration for Prediction of Red Tides show little movement of the bloom patch located closest to the coast near Levy County. The bloom patch further offshore of Levy and Dixie counties is moving northwest, while the patch offshore of northern Pinellas, Pasco, and Hernando counties is moving to the north.

Current Map of Red Tide Counts - Week of September 12, 2014

Statewide Red Tide Counts September 4-11, 2014

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Map of Bloom Area with satellite overlay - Week of September 12, 2014

BloomAreaWeb.JPG

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Regional Status Reports and Maps Adobe PDF (September 12, 2014)

Southwest coast report and map
East coast report and map
Northwest coast report and map

To see detailed information on this week's samples, view the current Statewide Google Earth map for September 12, 2014.

By using Google Earth, you can zoom in to specific locations and click on stations to see detailed information, including sample date and cell concentration. You must have Google Earth installed on your computer to view this map; the software can be downloaded from the Google Earth website. External Website

The FWRI Red Tide Status Line is now available to callers throughout the state. FWRI updates the recording each Friday by 5 p.m. Red Tide Status Line: 866-300-9399 (toll-free inside Florida only); 727-552-2448 (outside Florida).

Reports are updated on Friday afternoon except during holidays, in which case the report will be released on the closest day. Additional information, if available, is provided on Wednesday afternoon. To receive an e-mail when the current status has been updated, visit our subscription area.

Previous Regional Status Reports and Maps

September 4, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google earth map

August 29, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google Earth map

August 22, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google Earth map

August 15, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google Earth map

August 8, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google Earth map

August 1, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google Earth map

Key for Results

Description Karenia brevis cells/liter Possible Effects (K. brevis only)
NOT PRESENT - BACKGROUND background levels of 1,000 cells or less None anticipated
VERY LOW >1,000 to 10,000 Possible respiratory irritation; shellfish harvesting closures >  5,000 cells/L
LOW >10,000 to 100,000 Respiratory irritation, possible fish kills and bloom chlorophyll probably detected by satellites at upper limits
MEDIUM >100,000 to 1,000,000 Respiratory irritation and probable fish kills
HIGH >1,000,000

As above plus discoloration


Hotlines and Information Sources



FWC Facts:
Freshwater fish have a series of sensory pores called the lateral line that detect movement and vibration in the water, which helps with predatory and schooling behavior.

Learn More at AskFWC