As others pointed out elsewhere, a strong wave packet on the subtropical jet which was generated by an ENSO enhanced CCKW in the Pacific, is important here too as it's circumnavigating through southern Eurasia atm.
— Eric Webb (@webberweather) December 15, 2023
You can actually see the momentum flux convergence from both theā¦ pic.twitter.com/6XJgIrqq7S