Record-breaking

Atmospheric data is the biggest missing piece to improving modern forecasts. We fuse data from our long-duration balloons with state-of-the-art AI models to produce the most accurate weather forecasts.

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Atmospheric Data Collection

Harness Atlas, our global constellation of long-duration atmospheric balloons. Access critical data around the planet, including over oceans and the world’s most remote places.

AI-Based Forecasts

Deploy WeatherMesh, our deep learning forecast model utilizing our proprietary data. Leverage forecasts that surpass the accuracy of other physics and AI-based models.

Weather Insights

Get real-time intelligence from Delphi. The alerts, evaluations, and visualizations on our insights platform guide you to act ahead of time and mitigate risks with confidence.

Complete global access, from surface to stratosphere

WindBorne designs, builds, and operates the only technology that can capture in-situ atmospheric profiles everywhere, including over oceans and the Earth’s most remote places. Each balloon can maintain or transition between any altitude from sea level to 20 km, autonomously flying for weeks at a time.

Windborne Global Sounding Balloon (GSB)
Around 50 controlled vertical profiles per GSB
Multi-week lifetime and targeted global reach

Traditional Dropsonde
One vertical descending profile
Short lifetime of around 2h

Traditional Weather Balloon
One vertical profile
Short lifetime of around 2h

Launched Apr 10 2025, Flight W-2684 illustrates both tropospheric and stratospheric soundings

Proven Partnerships

WindBorne is proud of the breadth of our partnerships, which span from U.S. and international governments, to the private sector, to world-renowned philanthropic organizations. It is through these integral partnerships that our ground-breaking atmospheric data and forecasts make the greatest scientific and societal impacts.

→ what NOAA says about working with WindBorne → Our Press Release on federal Contracts → Reports on Our Gates Foundation Partnership

Our unparalleled Atmospheric Constellation

At WindBorne, we operate Atlas, the largest balloon constellation in the world and the foundation of our planetary nervous system. We launch hundreds of autonomous, next-generation weather balloons each month from our global launch sites and are scaling Atlas to permanently close atmospheric data gaps from pole to pole.

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