40,000-foot plus range, any plane going through this part of the thunderstorm is going to encounter ice. and as i mentioned before some pivotal inch sprumtstruments on an airplane that is the pitot tube tube air flow can be restricted and cause serious problems with airspeed indications and the aircraft auto pilot also loses ability to fly. this is the setup with the northeast monsoon across this region. we re tapping into moisture from the south china sea, northeasterly wind flow encountering a mountainous terrain, giving uplift to create the thunderstorm intensity. this is where we saw that constant activity of thunderstorms, and natalie, going forward, our computer models here at the cnn weather