#physics #weather **Arctic air building up** Nothing much in NA right now, but we are looking for the headpond to build up. This would be a large amount of very cold, clear air, forming a cold lock, like a glacier. A chart of potential energy would show a build-up, then a release all over us. During the last warm cycle, the plumes would have ensured this didn't happen. Another Texas Popsicle within a week, or a UK chill.