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 (October 1, 2014)

A patchy bloom of Karenia brevis, the Florida red tide organism, continues in the northeast Gulf of Mexico. Samples collected along and offshore of Taylor, Dixie, and Levy counties contained very low to high concentrations of K.  brevis.  Due to cloud cover, satellite images are not available this week.

Several large fish kills have been reported 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.

Additional samples analyzed throughout Florida this week did not contain Karenia brevis.

Midweek Red Tide counts October 1, 2014      

See larger map Adobe PDF

Forecasts by the USF-FWC Collaboration for Prediction of Red Tides (CPR), a partnership between the University of South Florida’s College of Marine Science and the Florida Fish & Wildlife Conservation Commission, show west/northwest movement of surface waters and inshore movement of bottom waters in the bloom patches between Taylor and Levy counties for the next three days. Based on these forecasts and observed red tide concentrations, the map below shows the potential for red tide effects within 5 km of shore. Inshore red tide effects may include fish kills and respiratory irritation. No warranty is made, expressed, or implied regarding accuracy or the suitability of this test product for any particular application.

Forecast map October 1, 2014

See larger map Adobe PDF

Regional Status Reports and Maps Adobe PDF (September 26, 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 26, 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 19, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google Earth map

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

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



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