Yeah, the jet ext is killing whatever brief window of favorable pac we get as the block moves southwest. This is so reminiscent of the past few Decembers it’s scary.
In winters past once the jet retracts the -epo pops to far west to favor cold in the east. This could be the case again for the second half of the month if the mjo slows in the warm phases, which is why I didn’t understand why people expected it to race through