Global sensing for better weather forecasts

WindBorne designs, builds, and operates a constellation of long-duration smart weather balloons targeting the most critical data in the atmosphere

WindBorne provides more data and flexibility at a fraction of the cost

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10x to 100x more data per dollar

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Global access from easy-to-reach launch locations

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Ability to target the most valuable data

Full access from surface to stratosphere

WindBorne balloons can be fully controlled throughout their altitude range, enabling us to repeatedly collect in-situ “slices” of the atmosphere with a single balloon. Take a look at a real flight profile below.

Launched from Palmer, AK on March 8 2021
Graph of the altitude profile of a WindBorne balloon

Ability to operate constellations with global reach

  • >500 flights
  • >5.5 years of cumulative flight time
  • >2.75 million kilometers cumulative ground track (7.2x distance to the moon)
  • >90,000 kilometers vertical distance traveled (equivalent of ~9,000 dropsonde profiles)
Map of hundreds of WindBorne's flights, covering the entire northern hemisphere

WindBorne's flight paths as of October 10, 2022

Proven partnerships

We have worked with NOAA, NCAR, the US Air Force, the Office of Naval Research, and the UCSD Scripps Institute of Oceanography -- and you can read what NOAA had to say about working with WindBorne. If you would like to work with us as well, email

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