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Gulf of Mexico Harmful Algal Bloom Forecast

In the Gulf of Mexico, HABs (or red tide) are caused by the rapid growth of a microscopic algae species called Karenia brevis. Red tide can impact the health of humans and animal life.

NOAA provides forecasts that enable coastal communities as they respond to red tide. NOAA monitors conditions year around and provides official forecasts for red tide through two main products: the Conditions Reports and the Bulletins.

The Conditions Report - Want to plan the perfect visit to the Gulf Coast? Pay attention to NOAA's Conditions Report and find a coastal area unaffected by red tide.

Red tide can cause respiratory and eye irritation in humans. The impacts vary by location and throughout the day. The Conditions Report identifies if red tide cell concentrations are present and provides forecasts of the highest potential level of respiratory irritation over the next 3-4 days. The website is updated twice a week during a red tide bloom, and additional updates are made if conditions change.

Bulletins - Are you involved in K. brevis HAB event response or research?

NOAA's bulletins are decision support tools for local coastal resource managers, public health officials, and research scientists. Bulletins provide an analysis of the location of a current K. brevis bloom and reported impacts, as well as forecasts of potential development, intensification, transport and associated impacts of blooms. Bulletins for southwest Florida and Texas are emailed to subscribers once weekly beginning in August, when conditions typically become favorable for a bloom. Bulletins are sent twice weekly during a bloom. Bulletins for northwest Florida to Louisiana and east Florida are emailed twice weekly during a bloom, but not issued when no bloom is present.

For more specifics on the Bulletins visit the Gulf of Mexico HAB Bulletin Guide.


Bulletin Archive (Updated 1 week after bulletin issued)

Southwest Florida
Northwest Florida to Louisiana

Click on the icon of Adobe Acrobat Reader link to download the PDF reader - Adobe Acrobat Reader

Pay attention to NOAA's HAB forecasts to plan a good time along the Gulf coast!
Pay attention to NOAA's HAB forecasts to plan a good time along the Gulf coast!

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services