A week-long, unusually cold Arctic outbreak will bring frigid conditions to most locations east of the Rockies starting today ...

The Arctic Oscillation is expected to be in a negative phase next week, which would allow cold air from the North Pole to ...

With this event, we actually had thundersnow as well. It does look like we will see a negative Arctic Oscillation (AO) phase begin the month and I am thinking that we could see at least a small ...