Impressive stratospheric action in today's 12Z Canadian: nearly half of the ensemble reverses the 60°N zonal flow all the way down to 100mb.
— World Climate Service (@WorldClimateSvc) February 7, 2024
The last time the 100mb 60°N wind reversed in winter was during the February 2010 SSW. pic.twitter.com/0aw9zNxWWi