|-EPO Temperature Correlation Map for October|
Invert colors (purple = warm, red = cold) for +EPO temps
Why does it matter? A lot of people tend to neglect the EPO as a major consideration in forecasting, as much laboring will be done over the AO or NAO...the more discussed and relatable correlations to Eastern US cold. But given that the EPO is upstream from here, it tends to be a decent gauge and have a big impact on what may occur in our neighborhood. In fact, the NWS in Detroit, which often puts together very detailed and forward thinking seasonal outlooks, discussed the relationship at length a few years back.
So when you see it getting warmer next week, know that the EPO helped to figure out it was coming, and you may want to start paying closer attention the EPO as the fall transitions into the winter.