TBH this is all academic, I can just go back to commenting on how the polar vortex continues to weaken, even if we don't see a cold spell in the first week of January, the potential gets better and better as we go through the month. At 10hpa the polar vortex is nearly at risk of being split:
The tropospheric polar vortex is located in siberia, well to the south (and 180degrees out in terms of longitude) where it should be.
By 384 hours the polar vortex is virtually in china and there is debris everywhere in the rest of the NH
My prediction is the first colder than average January since 2012 at the very least with a good chance of actually beating 2012.
Originally Posted by: Quantum