Classic positive E Asia Mtn Torque (+EAMT) being shown here as a cold sfc high descends into China. +EAMT signals strong/extensive N Pac jet & enhanced W Pac convection in early Dec >> NINO-ish pattern in N America, perhaps eventually morphing to -EPO (as @antmasiello alluded to) pic.twitter.com/t4dW0h8POS

— Eric Webb (@webberweather) November 24, 2020