#physics #weather **North America cold blob becomes fully supported** Over in NA, we have missed the fun of 50 below intense air streams. Now we have one. I look first at mimic to see the speed of the front, then I look at the winds to see if it is backed up by laminar air flow. Finally, a look a the temperature. This duck has all three. But it is up against powerful heat flows from the Gulf and the west coast. Can it survive to freeze everybody? Stay tuned, or walk outside. :)