Category Archives: Uncategorized

Windborne builds and flies controllable altitude balloons to collect weather data feeding an AI driven weather intellegence system. More info at https://windbornesystems.com

I always thought they made hydrogen in the field. This hurts forecasting. California forecasters lose ‘extremely valuable’ weather data during historic outage

https://www.washingtonpost.com/climate-environment/interactive/2025/weather-balloon-launches-staff-cuts

Written by Professor Rob Rowlands, of Sonoma State University (A final version of this article, can be found here: globehttps://ee.sonoma.edu/articles/2026/sonoma-state-engineering-students-launch-solar-powered-balloon-circles-globe ) This Spring semester, two accomplished instructors in the Engineering Department at Sonoma State University, Professor Rob Rowlands and Professor Robert (Bob) Salter, guided students in the E444L Radio Frequency Laboratory course to successfully launchContinue reading “SSU RF Ballooning”

After seeing some ground test transmissions and two partial balloon flight data sets, I had Claude.ai take a closer look at the telemetry data to see what information could be inferred. And also looked for possible sources of information for the flights. The following is some of the data about the flights, and some linksContinue reading “UC Davis launches two high-altitude balloons on Picnic Day”

Our friends at the NIBBB have the honor of first hobby club balloon getting shot down the USAF (F-22 Raptor/AIM-9X missile). The story here.

Filing a NOTAM:  This needs to be 24 hours in advance, so we need to decide by our planned launch hour.  You will need the GPS coordinates you intend to launch from, the direct of travel predicted for your flight, the start and end time in UTC, and the maximum altitude you expect to reach.Continue reading “How to File a NOTAM for Launch”

We will be having a high altitude balloon launch this Saturday, March 14! Launch site has been finalized. Meet at 8:30am or earlier at John Henry Johnson park on W Leland Rd in Pittsburg, CA: https://maps.app.goo.gl/N5GWNN7NF6gQGF5YA . See our groups.io page for more info .

On February 3, The FCC granted SF-HAB the vanity club call sign license W2HAB!