What Is Turbulence? A Pilot Explains How It Happens, Even in Clear Skies | WSJ

After decades of flying, pilot Stuart Walker says turbulence isn’t entirely predictable. But there are different types of turbulence pilots watch for. Walker explains each one and what pilots do to avoid a bumpy ride. Illustration: Alex Kuzoian for The Wall Street JournalMore from the Wall Street Journal:Visit WSJ.com: http://www.wsj.comVisit the WSJ Video Center: https://wsj.com/videoOn Facebook: https://www.facebook.com/pg/wsj/videos/On Twitter: https://twitter.com/WSJOn Snapchat: https://on.wsj.com/2ratjSM#WSJ #Aviation #Turbulence