Scientists have been reporting a shift in the earth magnetic poles for years even causing total chaos if they flip. Its ocean currents that create La Niña, and El Niño. This year they're predicting a strong La Niña.....just how strong who knows. If your in the mid to far west you could see more precipitation, and colder temps. Imo, from what I see from the accorn, and hickory nut trees, along with the animals here in New England, it will be much like last winter...above average, temps, and precipitation.