Update: the GEFS are showing increasing probability of a near-record amplitude ridge towards the Sept 19-22 time frame, associated with a Rossby Wave Packet downstream of recurving Typhoon Merbok.
— Tomer Burg (@burgwx) September 13, 2022
Where the ridge axis sets up will largely depend on Merbok's evolution. https://t.co/0NgnMAQvdM pic.twitter.com/3yaQSKMLdN