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Harmful Algal Bloom Monitoring Expands to New Coastal Northeast and Great Lakes Regions

June 01, 2026
A screenshot of HAB monitoring products from the NCCOS HAB Monitoring webpage, with new products being highlighted.

The highlighted regions are the newly added HAB monitoring products on the NCCOS HAB Monitoring webpage.

The National Centers for Coastal Ocean Service (NCCOS) within the National Ocean Service is expanding its harmful algal bloom (HAB) monitoring to include new products for the Northeast coast and Great Lakes. New satellite imagery of the Northeast coast supports bloom tracking in the Gulf of Maine and coastal waters off New York and New Jersey. These products provide satellite-based information to help partners better understand potential bloom conditions across a broad coastal region.

NCCOS is also generating high-resolution satellite imagery in the Great Lakes to include Maumee Bay, Ohio, Apostle Islands, Wisconsin, and Saint Louis River, Minnesota. This new imagery offers higher-resolution than ever before to support monitoring smaller or more complex bodies of water where finer-scale satellite observations are useful.

These new regions strengthen NOAA’s ability to deliver timely, science-based tools for state, local, and regional partners working to protect public health, coastal economies, and aquatic ecosystems from the impacts of HABs.

Learn more about the new satellite imagery and expanded regions through the NCCOS HAB Monitoring website.

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Last updated:
06/01/26

Author: NOAA

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