Red Tide Current Status

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

 Red Tide Summary (September 19, 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 35 miles offshore, dependent on location, between Taylor and Pasco counties, and less than 3 miles offshore of Cedar Key (Levy County). Concentrations of the red tide organism in these areas range from background to medium.

Fish kills have been reported off Horseshoe Beach (Dixie County) and approximately 9-12 miles offshore of Keaton Beach (Taylor County), as well as offshore in the bloom area.  No respiratory irritation has been reported alongshore the west coast of Florida; however, respiratory irritation is possible in the bloom areas.

Karenia brevis was not detected in, along, or offshore of Walton, Bay, Franklin, Escambia, Pinellas, Manatee, Sarasota, Charlotte, Lee, Collier, or Monroe counties. No samples were analyzed this week from Okaloosa, Santa Rosa, Gulf, Wakulla, Jefferson, Taylor, Citrus, or Pasco  counties.  Additional samples analyzed throughout Florida this week did not contain Karenia brevis.

Forecasts by the USF-FWC Collaboration for Prediction of Red Tides for the next three days show offshore movement of surface waters and onshore movement of bottom waters for the bloom patch located at the coast near Levy County. Offshore of Pasco and Hernando Counties, the surface patch is predicted to move WNW, and bottom waters are predicted to move SE towards the coast. The patch located south between Wakulla and Taylor counties and ESE of Franklin County is predicted to move west towards the coast.

Aerial and boat surveys by FWC staff along the west coast of Florida over the past week, in conjunction with the Coast Guard Auxiliary, have revealed blooms of the colonial cyanobacterium Trichodesmium spp. approximately 1 to 5 miles offshore of Clearwater Beach (Pinellas County) south to Sanibel Island (Lee County) and offshore in the current red tide bloom areas. 

A bloom of Pyrodinium bahamense has been ongoing in Tampa Bay since May, and discolored water has been reported.

FWC has received multiple reports of fish kills and reports of discolored water over the past month in the Indian River Lagoon system (Brevard County). Sampling has revealed bloom concentrations of multiple algae species, including Pyrodinium bahamense and Limnothrix spp.

Current Map of Red Tide Counts - Week of September 19, 2014

Statewide Red Tide Counts September 11-19, 2014

View larger map Adobe PDF

Map of Bloom Area with satellite overlay - Week of September 19, 2014

Current bloom area with satellite overlay image September 19, 2014

View larger map Adobe PDF

Regional Status Reports and Maps Adobe PDF (September 19, 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 19, 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 12, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google earth map

September 5, 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:
Numerous marine species, like blue crabs, redfish, white shrimp, stingrays, tarpon, are found more than 100 miles upstream in the freshwater portions of the St. Johns River.

Learn More at AskFWC