Another promising cold Arctic spill

 

This new one ticks all the boxes, but it is fighting against a stronger Sun.  

Lots of air still coming over the mountains, but the spill is shoving it away.

It has a huge amount of air behind it, and is the only spill going on right now.  Very interesting.

ps.  wow, that was a cold dog walk!  

pps.  as of this afternoon, it is still going strong, crossing the border and should, at least, hit the mid states.