Hi Stu,
I also have a Weatherflow Tempest station. It would be great to have WeatherCat support it, I would set it up as an additional station for the lightning data.
Thank you for your continued support of WeatherCat, I started using it in 2017 on version 2 and it has worked flawlessly. I'm looking forward to WeatherCat 4 when it is released.
Dave