The introduction of 5G mobile phone networks could seriously affect weather forecasters’ ability to predict major storms.
That is the stark warning of meteorologists around the world, who say the next-generation wireless system now being rolled out across the globe is likely to disrupt the delicate satellite instruments they use to monitor changes in the atmosphere.
https://www.theguardian.com/world/2019/may/04/5g-mobile-networks-threat-to-world-weather-forecasting