This summary report of current red tide conditions around Florida includes a map of sampling results and regional status reports.
Regional Red Tide Summaries (May 18, 2012)
Previous Red Tide Status Reports and Regional Maps
Statewide Google Earth Map (May 18, 2012)
Current Map of Red Tide Counts (May 18, 2012)
Hotlines and Information Sources
Reports are generally updated on Friday afternoon (except during holiday, 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 please visit our subscription area.
Regional Red Tide Summaries (May 18, 2012)
East Region: Karenia brevis, the Florida red tide organism, was not detected in water samples collected this week in the Indian River Lagoon system (Brevard County) or alongshore of Flagler and Dade counties. One sample of 7 total samples collected alongshore of St. Johns County contained very low concentrations of K. brevis.
East coast current status report - May 18, 2012
East coast regional map - May 18, 2012
Northwest Region: Karenia brevis, the Florida red tide organism, was not detected in water samples collected this week offshore of Okaloosa County. One sample collected inshore of Walton County contained background concentrations of K. brevis.
Northwest coast current status report - May 18, 2012
Northwest coast regional map - May 18, 2012
Southwest Region: Karenia brevis, the Florida red tide organism, was not detected in water samples collected this week alongshore and offshore between Pinellas and Monroe counties.
Patches of the cyanobacterium Trichodesmium, have been detected alongshore southwest Florida.
Southwest coast current status report - May 18, 2012
Southwest coast regional map - May 18, 2012
The FWRI Red Tide Status Line is now available to callers to hear a recording detailing red tide conditions throughout the state. FWRI updates the recording each Friday by 5 p.m. after sampling efforts for the week have been completed and analyzed. Red Tide Status Line: (866) 300-9399 (toll-free inside Florida only); (727) 552-2448 (outside Florida).
Other Harmful Algal Bloom Species
If you would like to learn more about other HAB species known to occur in Florida waters, see our Flickr page for brief descriptions and images.
top of page
Google Earth Maps
Users can utilize Google Earth maps to zoom in and zoom out on different sections of the state, and click on a sample location for specific information including latitude and longitude, sample date, and cell concentration ranges.
In order to view this map, you must have Google Earth installed on your computer. The Google Earth software can be downloaded from the Google Earth Web site
View the current Statewide Google Earth map for May 18, 2012 to see detailed information on this week's samples.
Previous statewide Google Earth maps
May 11, 2012
May 4, 2012
April 27, 2012
Map of Red Tide Counts

View larger map (PDF)
top of page
Previous Red Tide Status Reports and Regional Maps
Select a date to view a PDF file of previous status reports and regional maps for each region.
You will need Adobe Reader to view PDF files. To download Adobe Reader, visit http://get.adobe.com/reader/
East Coast
Status Report
May 11, 2012
May 4, 2012
April 27, 2012
Regional Map
May 11, 2012
May 4, 2012
April 27, 2012
Northwest Coast
Status Report
May 11, 2012
May 4, 2012
April 27, 2012
Regional Map
May 11, 2012
May 4, 2012
April 27, 2012
Southwest Coast
Status Report
May 11, 2012
May 4, 2012
April 27, 2012
Regional Map
May 11, 2012
May 4, 2012
April 27, 2012
Visit the Florida HAB Archived Status Maps Gallery for maps for the current and previous years.
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
|
Volunteers
MANY THANKS to the captains who collect offshore samples as part of FWRI's Volunteer Red Tide Offshore Monitoring Program. Learn more about our volunteer program.
top of page