The Arctic Oscillation, known in meteorological shorthand as the AO, alternates between two phases: positive, with low atmospheric pressure over the North Pole, and negative, with high atmospheric ...

In the winter season, meteorologists keep an eye on the arctic oscillation - called AO. The AO is a large scale mode of climate variability, also referred to as the Northern Hemisphere annular mode.

In the July 6 edition of the journal Science, the researchers report finding a strong correlation between the Arctic Oscillation's negative phase and near-record cold days and snow storms over a ...

This is the end-for-a-while of my series on the Arctic Oscillation / North Atlantic Oscillation. Links to background material and previous entries are below. At the end of the previous blog I ...

The Arctic Oscillation has positive and negative phases. During a positive phase, the upper-level polar winds are strong, reducing the likelihood of Arctic air spilling south. During a negative ...

This change, marked by a negative phase of the Arctic Oscillation, is expected to bring widespread cold air across much of the lower 48 states, with North Dakota facing some of the harshest ...

So, here are some of my thoughts broken down into each month this winter: It does look like we will see a negative Arctic Oscillation (AO) phase begin the month and I am thinking that we could see ...

such as the El Niño and La Niña phases of the El Niño Southern Oscillation (SN: 6/15/23). The Arctic Dipole is a smaller-scale, regional pattern of winds that is having a global impact ...

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 ...