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 Status
(December 19, 2014)

Karenia brevis, the Florida red tide organism, was found in background concentrations in one sample collected alongshore of Lee County and in background to very low concentrations in two samples collected offshore of Monroe County. 

Additional samples collected throughout Florida this week did not contain K. brevis.

Due to the holiday, a red tide status report will not be posted next week.  The next red tide status report is scheduled for posting on Friday January 2, 2015. 

Red Tide Status Map (December 19, 2014)

Statewide red tide counts 12-11 to 12-18-2014      
See larger map Adobe PDF

Regional Status Reports and Maps Adobe PDF (December 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 December 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

December 12, 2014
Southwest coast report and map
East coast report and map
Northwest coast report and map
Google earth map

December 5, 2014

Southwest coast report and map
East coast report and map
Northwest coast report and map
Google Earth map

November 28, 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:
Brown hoplo, a nonnative, armored catfish, is found throughout central and south Florida. They can survive in low-oxygen backwaters and ditches, where they gulp air at the surface.

Learn More at AskFWC