Weather Forecasting
Preparing for the Extreme
Ocean observing is crucial for accurate weather forecasting, especially when it comes to protecting coastal communities living in the path of damaging tropical storms. The ocean plays a significant role in regulating Earth’s climates and weather, influencing everything from humidity to storm formation. Changes in the saltiness of the ocean, for example, can affect the surface temperature and lead to more intense hurricanes. Understanding and monitoring conditions like these allows scientists to more accurately forecast storm intensification and predict extreme weather events. This gives communities time to prepare for potential threats. Tracking these trends over time can also help decision makers plan for the future to mitigate devastating losses. In addition to tragic loss of life, the average U.S. hurricane causes $22.8 billion in damage.
IOOS data contributes to National Weather Service and other agency forecasts and models that protect people, place, and property across the nation.

IOOS IN ACTION
IOOS Regional Associations collect data and develop unique tools to support hurricane forecasting. In partnership with NOAA and the U.S. Navy, the IOOS hurricane underwater glider program continuously monitors and tracks ocean conditions linked to hurricane intensity changes. Gliders also capture information on how the ocean shifts below passing storms. These uncrewed, underwater vehicles provide long-term sampling throughout the entire hurricane season, keeping global ocean models on track. In 2023, IOOS Regional Associations deployed 83 gliders along the Southeast and Mid-Atlantic coasts, in the Caribbean, and in the Gulf.
Regional Association Support
IOOS Regional Associations support a wide array of tools that help communities and stakeholders plan for other extreme weather events, including marine heatwaves and storm surges. These resources empower informed decisions, enhancing community resilience and safety during severe weather conditions.


