Following the current Greenland High regime, GEFS is now projecting an Alaskan Ridge regime toward the end of the month. A continuation of colder weather may be on the horizon for parts of North America. Monitor the forecast evolution here: https://t.co/oUo3v2w8al pic.twitter.com/eroKCxdPv7

— Dr Simon Lee (@SimonLeeWx) January 9, 2024