Air Force pilots evacuating ahead of Hurricane Idalia captured a rare weather event on video. The electrifying phenomenon isn't really lighting, though — it's St. Elmo's fire. CBC's Bob McDonald explains. #Pilot #AirForce #Science Watch The National live on YouTube Sunday-Friday at 9 p.m. ET Subscribe to The National: https://www.youtube.com/user/CBCTheNational?sub_confirmation=1 Connect with The National online: Facebook | https://www.facebook.com/thenational Twitter | https://twitter.com/CBCTheNational Instagram | https://www.instagram.com/cbcthenational More from CBC News | https://www.cbc.ca/news The National is the flagship of CBC News, showcasing award-winning journalism from across Canada and around the world. Led by Chief Correspondent Adrienne Arsenault and Ian Hanomansing, our team of trusted reporters help you make sense of the world, wherever you are. The National was named Canada’s Best National Newscast by the Canadian Screen Awards and RTDNA Canada.