Youve probably heard that the FAA, through its datalink weather service and support contractor Harris Corporation, is adding new weather products to the subscription-free FIS-B ADS-B data thats broadcast to UAT/978 MHz ADS-B receivers. Since the rollout was scheduled for June 2018, like others I cranked up my portable ADS-B receiver and tablet app, but didnt see the new lightning, turbulence, icing, cloud tops, G-AIRMETs and center weather advisories that are part of the new ADS-B In data. Without sampling the new weather products yet-including the planned new radar data that will replace the current Nexrad-its not fair to say the second-gen FIS-B stream will be a SiriusXM subscription killer, but based on the lineup of expected data its quite possible. Turns out implementing the new weather products isn’t as easy as I thought it might be, but it will likely be worth the wait.