CNN CNNI Simulcast December 28, 2014 08:48:00
Region. and when that gets blocked with ice, serious problems with happen. the auto pilot turns off. and ultimately the pilot has to navigate that airplane just ascend to get over the thunderstorm cloud tops or go below it. and that is obviously the concern for the pilots. this is the anatomy of a thunderstorm. we're talking about temperatures below freeding at 20,000 feet and above. when airplanes fly at these altitudes, they're obviously impacting and encountering ietce particles that could impact that pitot tube i just described. this is no stranger rough weather to this part of the world. ...
Source: archive.org