Great Lakes data in your hands.
We are a nonprofit providing end-to-end data services that support science, policy, management, and industry in the U.S. and Canada.
2026 GLOS Annual Meeting
Tuesday, November 10, 2026
We look forward to sharing the latest in Great Lakes observing and information technology, as we begin discussions around our next observations buildout plan and wrap up our celebration of 20 Years of GLOS!
Learn more about the meeting program and the post-meeting reception and special pitch event!
Seagull COAST
A New Mobile App for Great Lakes Coastal Safety
Seagull Coast is a new mobile application designed to help people make safer decisions when planning recreation in Great Lakes coastal areas.
With a user-centered design process that included workshops with recreational users and domain experts, surveys for requirements gathering, and multiple rounds of low-fidelity and high-fidelity design iterations, the app’s structure is informed by- and built for- the user.
Seagull Coast offers:
- Clear, easy-to-understand coastal safety information for recreational planning
- Identification of unsafe lake conditions that may impact activities such as boating, swimming, paddling, and shoreline recreation
- A mobile experience designed specifically for on-the-go decision-making
- Science-based data translated into actionable insights for everyday users
The app was launched in July of 2026. Download and test the free app for yourself!

Seagull
A platform built for Great Lakes data and information
GLOS built Seagull to help connect people to the water like never before. A powerful, cloud-based platform, Seagull re-imagines how connected data becomes information and insights in peoples’ hands.

A 501(c)(3) nonprofit, GLOS is a certified regional association in NOAA’s Integrated Ocean Observing System (IOOS). IOOS is a NOAA-led program that serves as our eyes on the oceans, coasts, and Great Lakes. Learn more

















