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 (August 29, 2014)

A patchy bloom of Karenia brevis, the Florida red tide organism, has been detected this month in the northeast Gulf of Mexico offshore between Dixie and northern Pinellas counties.  In other regions sampled this week along the Florida Gulf coast, only three samples contained background concentrations of K. brevis.  No respiratory irritation or fish kills associated with this bloom have been observed alongshore or inshore of the west coast of Florida.  Additional samples analyzed throughout Florida this week did not contain red tide.

Satellite images from the Optical Oceanography Laboratory at the University of South Florida show a surface bloom extending between Dixie and northern Pinellas counties, but preliminary data collected this week during an offshore research cruise on the Florida Institute of Oceanography’s R/V Bellows between Levy and Pinellas counties revealed mixed algae blooms often dominated by non-toxic species in surface waters. Low to medium concentrations of K. brevis were found at several locations within this region, mostly in deeper waters. Data from samples collected this week will be available in reports next week, as FWC researchers returned from the cruise earlier today with water samples.

Fish kills and low oxygen in bottom waters have been observed in the offshore bloom area. 

Forecasts by the Collaboration for Prediction of Red Tides show slow north movement of surface waters and little movement of bottom waters near the bloom patches in the next few days.

Current Map of Red Tide Counts - Week of August 29, 2014

Statewide Red Tide Counts August 21-28, 2014

View larger map Adobe PDF

Regional Status Reports and Maps Adobe PDF (August 29, 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 August 29, 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

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



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