Windborne Systems
WindBorne Systems, of Menlo Park, California, launches long-duration weather balloons and runs WeatherMesh, an AI forecast model built on the data they gather.
Founded in 2019 with 11 to 50 staff, it is building Atlas, a global balloon constellation, to observe parts of the atmosphere that are rarely measured. It names NOAA, the US Air Force and the US Navy as users; the register has not verified its description.
No verified deployments yet
Windborne Systems is profiled in the companies register, but no deployment has been verified against published evidence. Records are added as evidence is reviewed and graded.
Products & Solutions
3 productsAtlas (Global Balloon Constellation)
A global constellation of long-duration autonomous weather balloons (Global Sounding Balloons) that navigate the atmosphere for weeks, collecting vertical atmospheric profiles (pressure, temperature, humidity, wind speed, and direction) from surface to stratosphere across oceans and remote regions.
Only 15% of the planet is adequately observed for weather forecasting, creating data deserts over oceans and remote areas that degrade forecast accuracy globally. Traditional radiosondes collect a single profile per launch and have a two-hour lifespan, leaving vast regions unobserved.
- Each balloon conducts around 50 controlled vertical profiles per flight
- Multi-week operational lifetime (up to 40+ days)
- Autonomous altitude control (ascend and descend to sample different atmospheric layers)
- Global reach including polar regions and ocean basins
3 more features
- Real-time data transmission via satellite communications
- Dropsonde capability for storm sampling
- Launched from multiple global launch sites
Technical specifications (6)
- Sensors: pressure (Bosch BMP581), temperature, humidity, wind speed and direction
- Data collection every 10 seconds
- Balloon weight below 6 pounds (FAA deems non-significant risk to aircraft)
- ADS-B transponder for airspace visibility
- FAA and ICAO regulation compliant for airspace operations
- Satellite communications for real-time telemetry and data relay
WeatherMesh
An AI-based global weather forecast model trained on Windborne balloon data combined with publicly available observational data. Sold as a subscription forecast service and as a customised sector-specific model built to individual customer data needs.
Existing physics-based and AI weather forecast models underperform in regions with poor observational data coverage. Airlines and other industries operating in data-sparse areas receive inaccurate or outdated forecasts that lead to suboptimal routing and increased fuel burn.
- Outperforms traditional physics-based and other AI forecast models in medium-range predictions
- Uses Windborne proprietary balloon data plus publicly available global observations
- Customisable versions built for specific customer industries and data needs
- Used internally as the operational forecast system for Windborne balloon navigation
Technical specifications (3)
- Deep learning forecast model
- Ingests in-situ atmospheric profiles from Atlas constellation
- Combines proprietary and public observational datasets
Weather Solutions
Industry-specific weather intelligence service that transforms Windborne forecast data into actionable insights and workflow automations for commercial customers across sectors including aviation, agriculture, and energy.
Commercial industries need weather intelligence translated into specific operational decisions and automations rather than raw forecast data.
- Sector-specific intelligence and automation layers
- Actionable insights derived from WeatherMesh forecasts
- Targets aviation, agriculture, and energy sectors
Profile data from the Aerostack companies register; deployment records from the verified register. Evidence grades: T1 first-party confirmation, T2 credible reporting. See Our approach for how records are graded.