The polar vortex is in Siberia, and the jet stream is enhanced across the Pacific Ocean, plus more factors. Get the explanation from The Weather Network meteorologist Tyler Hamilton. #Canada #polarvortex #siberia #cold #weather #theweathernetwork https://www.theweathernetwork.com/en/... - - Never miss a weather alert! http://www.theweathernetwork.com Captured a weather video or photo that you want to share? Join The Weather Network community by signing up and submitting your videos or photos. - - SUBSCRIBE to our channel: https://www.youtube.com/weathernetwor... FOLLOW us here: Facebook: / theweathernetworkcan Twitter: / weathernetwork Instagram: / weathernetwork TikTok: / weathernetwork The Weather Network is committed to delivering weather updates and information to audiences 24 hours a day, 365 days a year. For over 25 years The Weather Network has been an English language weather news and information specialty channel that is owned by Pelmorex Media.