floating yellow buoy can be seen in water through a boat window

Data buoys, also known as weather buoys, are loved by boaters, swimmers, paddlers, fishermen and anyone who uses the water recreationally or for work. Knowing weather and wave conditions before going out on the water makes boating and other activities safer. Many people use our website and follow our Two Yellow Buoys on Twitter to get information on water and air temperature, wind speed and direction, wave height and more about southern Lake Michigan. While the buoys are out on the water, we host real-time data on our website for nearshore conditions off the coasts of Michigan City, Indiana, and Waukegan, Wilmette and Winthrop Harbor, Illinois.

Rich Armstrong of BoatUS Magazine highlighted these “weather watchdogs” and Illinois-Indiana Sea Grant’s Jay Beugly—our buoy handler—in his article “Data Buoys: Sentinels of the Sea,” as part of the December 2019 issue.

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Register Now for HASTI 2026! The early bird registration rate expires tomorrow!We’re excited to be presenting The Watershed Game at the conference. The game is a hands-on activity that helps educators and students explore water quality, land use, and community decision-making.✅ Don’t miss this opportunity to connect with fellow educators and bring new tools to your classroom!📅 Event Details & Registration at the link in bio.
Keeping on top of your farm finances can be a daunting task, but knowing what numbers to track, what the numbers mean, when to spend, and when to save can be critical for the long-term health of your aquaculture business finances. This webinar series will provide you with an overview of practical information for managing your farm’s finances. All webinars begin at 12pm ET. Registrants will be sent a webinar recording. All recordings will be added to a YouTube playlist on Ohio Sea Grant and Illinois-Indiana Sea Grant YouTube pages.Learn more at the link in bio.
Educators—this is for you!Unlock the potential of Great Lakes education with the latest issue of the Center for Great Lakes Literacy newsletter. Explore exciting opportunities like vessel-based learning, an aquaculture competition, and classroom-ready resources on maritime heritage, harmful algal blooms, invasive species, and more!Learn more at the link in bio.