The U.S. Government is closed. This site will not be updated; however NOAA websites and social media channels necessary to protect lives and property will be maintained. To learn more, visit www.commerce.gov. For the latest forecast and critical weather information, visit www.weather.gov

The U.S. government is closed. This site will not be updated; however, NOAA websites and social media channels necessary to protect lives and property will be maintained. To learn more, visit commerce.gov

For the latest forecasts and critical weather information, visit weather.gov.

Hypoxia Forecast

Hypoxia occurs when the amount of oxygen in water becomes too low to support most aquatic life (typically below 2 mg/L). Hypoxia is an expanding global problem and a symptom of degraded water quality, largely resulting from human activities such as agricultural runoff, burning of fossil fuels, and wastewater treatment discharges. Hypoxic waters can become dead zones for organisms that cannot escape. This directly impacts ecosystem health, and often reduces the value of commercial and recreational fisheries. To help alert coastal managers and decision makers of potential risk for hypoxic zones, NCCOS and partners issue regional seasonal outlooks and operational forecasts.

NCCOS Hypoxia Forecasts

External Partner Hypoxia Forecasts

Additional hypoxia forecasts are produced externally by NOAA partners and collaborators. These forecasts are produced regionally and provide advanced warning of hypoxic events to local stakeholders and managers.