ARCTIC OSCILLATION TO TREND POSITIVE BY MID-FEBRUARY… The Arctic Oscillation (AO) is *one* of many indicators we can look at to determine the potential for cold air intrusions from up north in the winter months. When the AO is in negative territory (like the last few weeks), confidence builds that our area will have some really cold weather. Obviously, in this case, it verified.
The good news: The AO is expected to trend toward positive values (thus cold, Arctic air will be “locked up” in the Arctic) in a few weeks. Hopefully this will bring an end to the ridiculously, unseasonably cold we have had and will have in the days ahead.
