18z GFS 10mb height and 2 PVU theta forecast through 126h. Watch how the anticyclonic wave break over Scandinavia/Barents teams up with the Aleutian Low pattern to squeeze the vortex all the way up to 10mb. pic.twitter.com/aFBBc5KlsT

— Anthony Masiello (@antmasiello) November 30, 2020